KR920001551B1 - Method and apparatus for activacting/deactivacting terminal adaptor using in data network - Google Patents

Abstract

setting an SPU bit for an SPCR register; reading a C/I code from a CIRR register upon finding the setting of a CIC bit; writing an ARU command upon finding a PU display by inspecting the C/I code; setting up a signal detecting flag upon encountering an RSYD display; resetting the flag upon finding a setting of a flag; transferring a PH-AI primitive to a layer 2 upon finding an AID display; writing a DIU command into a CIXR register upon encountering a DR display; and transferring a PH-DI primitive to the layer 2 upon encountering a DID display.

Description

Activation / De-Activation Methods for Terminal Adapters

1 is a system block diagram of a terminal adapter for carrying out the present invention.

2 is a state diagram of the activation / deactivation procedure of FIG.

3a and 3b are flow charts of the activation / deactivation procedure according to the present invention.

* Explanation of symbols for main parts of the drawings

10: S-interface controller 20: multiplexing and demultiplexing unit

30: microcontroller 40: reset logic

50: first R-interface module 60: second R-interface module

70: key portion 80: display portion

90 memory

The present invention relates to an S-interface (interface) between a network termination device (hereinafter referred to as NT) and a terminal adapter (hereinafter referred to as TA) in an ISDN (Integrated Service Digital Network) network. It relates to an activation / deactivation method powered by NT through an interface.

In general, most conventional terminals do not operate in a low power consumption mode, and there are cases in which only a large portion is consumed while operating in a low power consumption mode. In addition, even when the activation / deactivation procedure is followed, the procedure is complicated and time-consuming because the procedure writes an instruction or checks an indication for each state.

Accordingly, an object of the present invention is to provide an activation / deactivation method of a terminal adapter that can operate in a low power consumption mode when a call is not progressed when a TA is supplied from NT while operating a call. In providing.

Hereinafter, the present invention will be described in detail with reference to the drawings.

1 is a general system block diagram of a TA for carrying out the present invention, which is connected to the microcontroller 30 and the microcontroller 30 to control the TA as a whole. A reset logic 40 for resetting the microcontroller 30 upon detection, a first R-interface module 50 connected between the microprocessor 30 and the voice subscriber terminal, and the microcontroller 30 A second R-interface module 60 connected between data subscriber terminals, an S-interface controller 10 for transmitting and receiving data to and from the NT via a transmission line of the S-interface under the control of the microcontroller 30, and It is connected between the first and second R-interface modules 50 and 60 and the S-interface controller 10 and receives from the voice subscriber station and the data subscriber station. Multiplexes the data and transmits the data to the S-interface controller 10, and demultiplexes the data received from the NT by the S-interface controller 10 to the first and second R-interface modules 50 and 60. A multiplexing and demultiplexing unit 20 to be transmitted to the microcontroller 30, a key unit 70 connected to the microcontroller 30 through a data bus and a control bus to apply key data to the microcontroller 30, and the microcontroller. A key unit 70 connected to a data bus and a control bus 30 to apply key data to the microcontroller 30, and a microcontroller connected to the microcontroller 30 through a data bus and a control bus. The microcontroller 30 controls the display unit 80 for displaying the operation state of the TA under the control of the control unit 30, the address bus, the data bus, and the control bus. The result is a memory 90 to store and perform program processing data in the microcontroller 30.

2 is a state diagram of the activation / de-activation procedure of FIG.

3a and 3b are flow charts of the activation deactivation procedure according to the present invention, and FIG. 3a shows the microcontroller 30 setting the SPU bit in the SPCR register of the S-interface controller 10 when the microcontroller 30 detects the hook-off of the subscriber station. The process of doing so.

FIG. 3B shows the data of the ISTA register by the interrupt from the S-interface controller 10 with the microcontroller 30 setting the SPU bit in the SPCR register as shown in FIG. 3A. The process of reading the C / I code of the register and checking the read C / I code, writes an ARU instruction to the CIXR register if the PU is displayed, sets the signal detection flag if the RSYD is displayed, and sets the signal detection flag if the ARD is displayed. It checks and resets the set. If the AID is displayed, the PH_AI primitive is transmitted to the layer 2, if the DR is indicated, a DIU instruction is written to the CIXR register, and if the DID is displayed, the PH_DI primitive is transmitted to the layer 2.

Based on the above configuration, the present invention will be described in detail with reference to FIGS.

First, in general, an ISDN user and a network interface are configured to satisfy an S-interface between NT and TE1 (Terminal Equipment 1), which is an ISDN phone. TE may be point-to-point connected to the NT or point-to-multipoint. The TE is powered from the NT through the S-interface by a TA, an interface converter.

However, since the power is consumed even when a call is not in progress, the activation / deactivation procedure is used to efficiently use the power supplied from NT by reducing the power consumption.

The deactivation operates in a low power consumption mode when the call is not in progress and the activation operates in a normal power consumption mode.

The activation is performed by the activation procedure when the voice subscriber or data subscriber of the TA hooks off to make an outgoing call and is activated by the activation procedure. Primitives are sent by layer 1. The normal call procedure then proceeds. Alternatively, when TE is an incoming call, NT sends a second information (Information 2 hereinafter referred to as INF0.2) so that TE (TA) proceeds from the F6 state.

The deactivation may be deactivated by requesting deactivation from the NT when there is no call, or deactivating when reading a frame on the S-interface.

The state of the activation / deactivation procedure in the TA is shown in FIG.

In the activation / deactivation procedure, the activation state is first turned on during an outgoing call, and then the TA stays in the F3 state and the NT stays in the G1 state. In F3 and G1 states, the INF0.0 signal is sent to the other side. That is the deactivation state. When the subscriber of the TA hooks off, it sends INF0.1 in F4 state and receives a signal (Any signal: hereinafter referred to as AS) and waits for INF0.2 in F5 state. When the TA receives INF0.2 in the F5 state, the TA transitions to the F6 state and transmits INF0.3. When INF0.4 is received in F6 state, it transitions to F7 state, which is the normal Activation State (NAS), and is activated. In addition, when the incoming call is activated, the activation state is 1) When the TA receives INF0.2 in the F3 state, it goes to the F6 state. Transmit to F6 state and send INF0.3. 2) When INF0.4 is received in F6 state, it is transitioned to F7 state and activated. On the other hand, the deactivation state goes to the F3 state when the TA receives INF0.0 (deactivation request signal) in the F7 state. If the frame is lost in the F7 state, that is, if no signal INF0.0 occurs, the state transitions to the F8 state and transmits the INF0.0. When the INF0.0 is received from the NT, it goes to the F3 state and deactivates.

Meanwhile, the microcontroller 30 of FIG. 1 performs an activation / deactivation procedure by writing or reading an instruction to various registers of the S-interface controller 30. The S-interface controller 10 uses PEB 2085 of the German SIEMENS company, and has a Serial Port Control Register (SPCR) register for serial port control, an Interrupt Status Register (ISTA) register indicating an interrupt status, and commands and displays from NT. It has a Command / Indicate Recevie Register (CIRR) register for receiving a signal and a CIXR (Command / Indicate Transimit Register) register for sending commands and indications to NT. In addition, the S-interface controller 10 sets the CIC bit of the ISTA register indicating this when the C / I (Command / Indicate) code of the CIRR register changes.

In addition, in the C / I code, the display indicates a power up (PU) indicating power up, a level detected (RSYD) indicating that a level is detected in any signal, an activation request (ARD) indicating an activation request, and an AID indicating activation. Indication), a deactivation request (DR) indicating a deactivation request by the S-interface, and a deactivate indication (DID) indicating a deactivation. In the C / I code, the command includes an ARU (Activate Request) for commanding an activation request and a Deactivate Indication (DID) for commanding an activation indication.

The procedure of activation / deactivation by the control of the microcontroller 30 of FIG. 1 based on the procedure of FIG. 2 as described above will be described with reference to the flowchart of FIG.

First, the microcontroller 30 of FIG. 1 checks the hook-off of the voice or data subscriber in step 1A at the monitor level of FIG. 3a. Perform. In step 2A, the SPU (Software Power Up) bit of the SPCR register of the S-interface controller 10 is set and returned.

As described above, the SPU bit of the SPCR register of the S-interface controller 10 is set, and then the interrupt level of FIG. 3b is performed at every interrupt request from the S-interface controller 10. In step (1B) of FIG. 3B, the data of the ISTA register of the S-interface controller 10 is read to check whether the CIC bit is set in (2B). If it is set in step (2B), step (4B) is performed after reading the C / I code of the CIRR register of the S-interface controller 10 in step (3B). In step (4B), it is checked whether the C / I code is a PU display. If it is PU display, in step 5B, an ARU instruction is written to the CIXR register of the S-interface controller 10 and returned.

If the C / I code is not PU in step (4B), it is checked whether it is RSYD in step (6B). If RSYD is displayed in step (6B), a signal detection flag indicating that a signal level is detected in step (7B) is set and returned.

If the C / I code is not RSYD in step (6B), check whether the ARD is displayed in step (8B). If the signal detection flag is set or not in step (9B), return and set if (10B). In step), the signal detection flag is reset and returned. If the C / I code is not an ARD display in step (8B), it is checked whether the AID display is performed in step (11B). If the AID is displayed, the PH_A1 primitive is delivered to layer 2 and returned. If the C / I code is not the AID display in step (11B), it is checked whether the DR display is performed in step (13B). If the DR display is performed, a DIU instruction is written to the CIXR register of the S-interface controller 10 and returned. In step 13B, if the C / I code is not DR, it is checked whether or not the DID is displayed in step 15B. If the DID is displayed, the PH_DI primitive is delivered to layer 2 and returned.

Therefore, at the interrupt level, a command corresponding to the CIRR register and the CIXR register of the S-interface controller 10 is written and the indication is given. Here, the interrupt informs the microcontroller 30 as an external interrupt by the hardware of the S-interface controller 10.

On the other hand, when the activation / de-activation is performed by the above described as follows. If the SPU bit is set in step (2A) of FIG. 3A, the PU is interrupted during the interrupt. Correspondingly, if ARU (INF0.1) is written by performing steps (1B)-(5B) of FIG. 3B, INF0.1 is transmitted. In addition, when INF0.2 is received, ARD appears during the interrupt, and INF0.3 is automatically sent out by the S-interface controller 10. When INF0.4 is received, it is activated. In addition, when INF0.0 appears in the S-interface, a DR interrupt appears. Correspondingly, if the DIU instruction is written in step (16B), the DID interrupt is displayed and deactivated.

As described above, the present invention uses the power consumption of the TA and TEL connected to the S-interface in a low power consumption mode while satisfying the S-interface between the NT and the TA in the ISDN network, while minimizing NT power consumption. The activation procedure has the advantage of being simple.

Claims (1)

SPCR register for serial port control, ISTA register for interrupt status, CIRR register for receiving command indication from network terminator, CIXR register for sending command and indication to network terminator. An activation / deactivation method of a terminal adapter having an S-interface controller (10) for transmitting and receiving data and a microcontroller (30), the method for setting the SPU bit of the SPCR register upon detection of a hook-off of a subscriber station. A second process of reading data of an ISTA register by an interrupt from the S-interface controller 10 after performing the first process, and reading a C / I code of the CIRR register if the CIC bit is set; The C / I code read in the second process is examined to write an ARU instruction of the CIXR register if the PU is displayed, and if the RSYD is displayed, a signal is detected. Set the flag.If ARD is displayed, the signal detection flag is checked and reset if it is set.If AID is displayed, the PH_AI primitive is transferred to Layer 2, and if DR is used, a DIU instruction is written to the CIXR register. Activation / de-activation method characterized in that consisting of a third step of delivering a PH_DI primitive.

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