CN103164385A - Small-sized and multifunctional MINI CPU module specification - Google Patents

Abstract

The invention discloses a small-sized and multifunctional MINI CPU module specification. A bus pin definition and signal description of the small-sized and multifunctional MINI CPU module specification comprise a Video analog video signal, a VGA display signal, an HD Audio signal, an LVDS signal, an SATA signal, a USB 2.0 signal, a USB 3.0 signal, a PCI-e Bus signal, a Giga LAN signal, an SMBUS signal, a Serial signal, a GPIO signal, a DDI signal (which can be used along with the GPIO signal), an LPC Bus signal, a KB/MS/Other signal, an ATX signal, a Power standby signal, a Power signal, a GND signal and a reserved pin. A double-row surface-mounted 180 pin socket QSH-090-F-D-A-K produced by the SAMTEC company is selected as a bus connector. The size of the module is 85 * 65 mm. On the basis of the MINI CPU module specification, embedded computer modules of various performance classes can be developed, a system engineer can only focus on a design of an application system substrate, the computer system functions are changed just through redesign of the application system substrate, the computer system functions can be updated just through the utilization of latest computer modules, and developing time and cost are greatly saved.

Description

A kind of small size, multi-functional MINI CPU module standard

Technical field

The present invention relates to the For Embedded Computer On Modules standard, particularly a kind of small size, multi-functional MINI CPU module standard.

Background technology

Common small size For Embedded Computer On Modules standard has ETXexpress, COM Express etc.Before successfully having solved, ETX is in PC/104 some bottlenecks in the middle of practical application of monopoly position in the embedded computer field, such as whole plate without cable design, relatively higher calculated performance, more abundant expansion interface, good thermal design concept and higher integrated level etc., started " chip PC epoch ".But ETXexpress does not support Giga LAN, SATA signal, USB3.0 signal, PCI express signalling technique, and size larger (114 * 95 mm).COM Express is in order to adapt to following technology trends and the market demand, to have included emerging bus and interfacing in, as PCI express, SATA, Giga LAN, USB3.0 signal etc.COM Express quite flexible on pattern, it has 4 kinds of optional sizes, wherein three kinds of sizes are respectively 110 * 55 mm, 125 * 95 mm, 95 * 55 mm, size is larger, another kind of size less (84 * 55 mm), integrated multiple legacy interface and popular high-speed interface signal, but two Giga LAN, USB3.0, VGA, VIDEO interface signal do not supported.

Summary of the invention

Purpose of the present invention aims to provide a kind of small size, multi-functional MINI CPU module standard, integrated multiple legacy interface and popular high-speed interface signal on the circuit board of size 85 * 65 mm, can support two Giga LAN, USB3.0, VGA, VIDEO signaling interface, MINI CPU module based on this standard is arranged on the application system substrate of system engineer's design, can build various embedded computer systems.

The technical solution adopted for the present invention to solve the technical problems is:

A kind of small size, multi-functional MINI CPU module standard, its bus pin definition and signal description are: Video analog video signal, VGA display, HD Audio signal, LVDS signal, I ²C signal, SATA signal, USB2.0 and USB3.0 signal, PCI-e Bus signal, Giga lan signal, SMBUS signal, Serial signal, GPIO signal, DDI signal (multiplexing with the GPIO signaling interface), LPC Bus signal, KB/MS/Other signal, ATX signal, Power standby signal, Power signal, GND signal and reservation pin.Bussing connector is selected the SAMTEC double Surface Mount 180 pin sockets QSH-090-01-F-D-A-K of company; Module is very little is 85 * 65mm.

This CPU module standard according to this programme is realized has following several new function:

1) this standard has taken into full account following processor developing direction, can support processor and chipset for mobile computing and embedded calculating field release within a very long period in future;

2) this standard module is less than the module size of congenerous kind on market, function than unidimensional kind is more complete, substantially integrated all desktop system legacy interfaces and popular high-speed serial bus are supported two Giga LAN, USB3.0, VGA, VIDEO signaling interface;

3) to high-speed bus and interfacing, as PCIexpress2.0, SATA III and USB3.0 etc., the connector that MINI CPU module bus adopts still can be supported;

4) bus pin signal distribution principle is low speed collocation high according to signal, considers that electromagnetic compatibility and cabling are convenient, makes the application system substrate design easier, simpler;

5) the pin width 0.15mm of institute's employing connector, spacing 0.5mm, size is little, and the application system substrate can have larger area wiring; Connector has adopted special shielding design, and the metal screen layer that can be connected with ground level is arranged, and can improve the whole property of MINI CPU module antijamming capability and signal;

6) arrange 4 on circuit board and be used for the mounting hole fixing with the application system substrate, improved the reliability that is connected with the application system substrate.

The present invention can realize powerful handling property and abundant I/O interface being of a size of on the circuit board of 85 * 65mm.Can develop the MINI CPU module of various performance rates based on this CPU module standard, the system engineer only need be absorbed in the design of application system substrate, just can build the computer system of various performances, applies in a flexible way in all trades and professions.The upgrading computer system does not need conversion application system substrate yet, only needs to use up-to-date computer module on the application system substrate, thereby has greatly saved research and development time and cost.

Description of drawings

Fig. 1 is the structural representation of small size of the present invention, multi-functional MINI CPU module standard.

Embodiment

The invention will be further described below in conjunction with embodiment:

The described a kind of small size of the present embodiment, multi-functional MINI CPU module standard are the CPU module standards that designs for adapting to following processor developing direction and high-speed bus and interfacing demand, specifically mark as follows:

1, the bus pin definition sees the following form

2, signal instruction

2.1 VIDEO signal

VIDEO_CVBS：

Analog signal output: output composite video signal or to rgb video output blue signal;

VIDEO_Y：

Analog signal output: to S video terminal output Y-signal (luminance signal), perhaps to rgb video output red signal (SCART);

VIDEO_C：

Analog signal output: for S video terminal output C signal (color/carrier chrominance signal), perhaps to rgb video output green;

2.2 VGA signal

The output of VGA analog video needs outside termination;

VGA_RED、VGA_GREEN、VGA_BLUE：

The red, green, blue analog video output signal of CRT monitor, these signal wires should termination 75 Ω build-out resistors when connecting with video-frequency connector;

VGA_HS：

Line synchronizing signal: the output of line synchronizing signal provides the horizontal synchronizing pulse signal of CRT monitor;

VGA_VS：

Field sync signal: the output of field sync signal provides the field system chronizing impulse signal of CRT monitor;

VGA_DDCD、VGA_DDCC：

These two pins can be used as the DDC interface between graphics controller chip and CRT monitor;

2.3 HD Audio signal

HDA_BITCLK: clock signal

HDA_SDOUT: data input

HDA_SDIN: data output

HDA_RESET#: reset

HDA_SYNC: synchronous

2.4 LVDS signal

LVDS_DP0, LVDS_DN0; LVDS_DP1, LVDS_DN1; LVDS_DP2, LVDS_DN2; LVDS_DP3, LVDS_DN3:LVDS data output signal pin are Difference signal pairs, answer cloth to become Difference signal pair when wiring, and these 4 Difference signal pairs can be supported one 18 or single channel TFT interface still less;

LVDS_CKP, LVDS_CKN: clock signal differential data pair;

LVDS_DDCC, LVDS_DDCD: dull and stereotyped parameter is deposited in the I2C bus interface of EEPROM, this EEPROM is arranged on the JILI adapter, and the data in EEPROM allow MINI CPU module for the suitable time sequence parameter of LCD flat panel display Lookup protocol of appointment;

LVDS_VDDEN: power enable signal

LVDS_BKLTEN: enable signal backlight

LVDS_BKLTCTL: backlight control signal.

2.5 SATA signal

SATA1_TXP, SATA1_RXP:SATA1 Difference signal pair A;

SATA1_TXN, SATA1_RXN:SATA1 Difference signal pair B;

SATA_HD_LED:SATA dish read-write pilot lamp;

SATA2_TXP, SATA2_RXP: SATA2 Difference signal pair A;

SATA2_TXN, SATA2_RXN:SATA2 Difference signal pair B;

2.6 USB2.0 signal

Usb signal end element is integrated on MINI CPU module, and when using the USB external unit, the substrate design slip-stick artist should add protection device on substrate, comprise current limliting or electrical fuse element, and the usb data signal wire should connect up and be Difference signal pair;

USB1_DP, USB1_DN; USB2_DP, USB2_DN; USB3_DP, USB3_DN; USB4_DP, USB4_DN:USB port one, 2,3,4 serial data pair;

USB_OC12, USB_OC34: overcurrent protection output signal

2.7 USB3.0 signal

RES (USB_SSTXP), RES (USB_SSTXN): hypervelocity receives differential data to (superspeed receiver differential pair)

RES (USB_SSRXP), RES (USB_SSRXN): hypervelocity sends differential data to (superspeed send differential pair)

2.8 PCI-e Bus signal

PCIEX1_TXP1, PCIEX1_TXN1: data send Difference signal pair

PCIEX1_RXP1, PCIEX1_RXN1: data receiver Difference signal pair

PCIEX1_CKP1, PCIEX1_CKN1: reference clock Difference signal pair

PCIEX1_RESET+: reset signal

PCIEX1_TXP2, PCIEX1_TXN2: data send Difference signal pair

PCIEX1_RXP2, PCIEX1_RXN2: data receiver Difference signal pair

PCIEX1_CKP2, PCIEX1_CKN2: reference clock Difference signal pair

2.9 Giga lan signal

MINI CPU module the Ethernet Interface Design is as outside 1:1/1:1 transformer;

LAN1_DN0: the 0th pair of data signal line of kilomega network interface 1+

LAN1_DP0: the 0th pair of data signal line of kilomega network interface 1-

LAN1_DN1: the 1st pair of data signal line of kilomega network interface 1+

LAN1_DP1: the 1st pair of data signal line of kilomega network interface 1-

LAN1_DN2: the 2nd pair of data signal line of kilomega network interface 1+

LAN1_DP2: the 2nd pair of data signal line of kilomega network interface 1-

LAN1_DN3: the 3rd pair of data signal line of kilomega network interface 1+

LAN1_DP3: the 3rd pair of data signal line of kilomega network interface 1-

LAN1_LED1、?LAN1_LED2、LAN1_LED3；

LAN2_DN0: the 0th pair of data signal line of kilomega network interface 2+

LAN2_DP0: the 0th pair of data signal line of kilomega network interface 2-

LAN2_DN1: the 1st pair of data signal line of kilomega network interface 2+

LAN2_DP1: the 1st pair of data signal line of kilomega network interface 2-

LAN2_DN2: the 2nd pair of data signal line of kilomega network interface 2+

LAN2_DP2: the 2nd pair of data signal line of kilomega network interface 2-

LAN1_DN2: the 3rd pair of data signal line of kilomega network interface 2+

LAN1_DP2: the 3rd pair of data signal line of kilomega network interface 2-

LAN2_LED1、?LAN2_LED2、LAN2_LED3；

2.10 SMBUS signal

The clock of SMB_CLK, SMB_DATA:SMBUS and data signal line can be used for supporting outside SMBUS equipment such as temperature and battery cell monitoring chip, and the address of outside SMBUS equipment must be optional, so that they do not conflict with the home address of MINI CPU module;

SMB_ALERT:SMBUS reminds line;

2.11 Serial signal

COM[1--4] _ TX: serial ports sends serial data output;

COM[1--4] _ RX: receive the serial data input;

COM[1--4] _ CTS: the serial ports input signal, activate and be low level.Handshake, notice UART when modem is ready to receive data;

COM[1--4] _ RTS: the serial ports output signal, activate and be low level, handshake, notice modem when UART is ready to send data;

2.12 GPIO signal

GPIO_A[0--7]: the direction of 8 IO must change (can not control separately) simultaneously;

GPIO_B[0--7]: the direction of 8 IO must change (can not control separately) simultaneously;

All GPIO signals are as when input, and the outside can connect draws or pull down resistor, and during as output, the outside can not connect draws or pull down resistor as GPIO, and sometimes as input during sometimes as output, the outside can not connect draws or pull down resistor as GPIO;

2.13 LPC Bus signal

LPC_AD[0--4]: lpc bus address bit signal 0-4;

LPC_SERIRQ: serial intermit

The input of LPC_CLK:LPC bus test clock

LPC_FRAME#:LPC bus frame signal

The LPC_RESET:LPC bus reset signal

2.14 KB/MS/Other signal

MSC: mouse clock signal

MSD: two-way mouse data signal

KBC: keyboard clock signal

KBD: bidirectional keyboard data-signal

NUM_RESET: systematic reset signal

The BEEP:PC speaker output signal.The transistor that this logic level signal can be connected to an outside drives piezoelectric type or dynamic loudspeaker;

BATT:3V backup battery input signal, BATT are connected to 3V reserve lithium battery, and be non-volatile for RTC work and CMOS register when system power failure;

2.15 ATX signal

The upper electric control signal that S3#, S4#, RES (S5#): CPU partly export;

PWRBTN#: power knob input.The host power switch input signal;

RES (PG): the ATX power work is ready to complete signal;

RES (PSON#): ATX power switch control signal; By PWRBTN#, PG determines it is start or shutdown action; PSON# is directly opened in boot action; Shutdown action to first judge PWRBTN# be short by or long by 4 seconds, short state by rear judgement S3#, S4#, S5# can be closed PSON#; Long by directly closing afterwards PSON# in 4 seconds;

BIOS_SEL0:bios control signal (producer's reservation)

2.16 Power standby signal

RES (+5VSB): the power supply input of inner power consumption and power control circuit is connected to the standby power supply of 5V, 1A, if just do not connect without standby power supply;

2.17 Power signal

+ 5V: provided+the 5V power supply by substrate, 6+5V of MINI CPU module pin all to be connected to substrate+the 5V power supply;

2.18 GND signal

All GND pins of GND:MINI CPU module all should be connected to the ground of substrate;

2.19 reservation pin

Function in parenthesized pin bracket is reservation function, so that following the use.Do not connect any external signal to these pins;

3, electrical specification

Signal definition in MINI CPU module standard, electrical standard, read-write sequence etc. are observed the relevant interface standard of PC;

4, mechanical property

4.1 module size

As shown in Figure 1, module 1 is of a size of 85 * 65mm, has four to be used for the mounting hole fixing with the application system substrate on it, and aperture 3.5mm is 79 mm with parallel horizontal two pitchs of holes of connector, is vertically 59 mm to two pitchs of holes;

4.2 Bussing connector

Bussing connector adopts the SAMTEC QSH-090-01-F-D-A-K of company, is double Surface Mount 180 pins, and Fig. 2 is the size schematic diagram of Bussing connector of the present invention, and the size marking in the figure bracket is metric system, and unit is mm; The outer size marking of bracket is made in Great Britain, and unit is inch;

Important technological parameters is as follows:

Rated voltage: 125V

Rated current: 1.0A

Plate is to plate height 5mm or 8mm

The gold-plated 50um of reed

Signal rate: support PCIE.

Claims (4)

1. a small size, multi-functional MINI CPU module standard, its pinout and signal description are: Video analog video signal, VGA display, HD Audio signal, LVDS signal, I ²C signal, SATA signal, USB2.0 and USB3.0 signal, PCI-e Bus signal, Giga lan signal, SMBUS signal, Serial signal, GPIO signal, DDI signal (multiplexing with the GPIO signaling interface), LPC Bus signal, KB/MS/Other signal, ATX signal, Power standby signal, Power signal, GND signal and reservation pin.

2. small size according to claim 1, multi-functional MINI CPU module standard, is characterized in that, Bussing connector adopts the SAMTEC double Surface Mount 180 pin sockets QSH-090-01-F-D-A-K of company.

3. small size according to claim 1, multi-functional MINI CPU module standard, its module size is 85 * 65mm.

4. small size according to claim 1, multi-functional MINI CPU module standard, is characterized in that, described printed circuit board (PCB) has four and is used for the mounting hole fixing with the application system substrate.

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