KR900004146A - Data transfer device for DTB on VME bus - Google Patents

Data transfer device for DTB on VME bus Download PDF

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Publication number
KR900004146A
KR900004146A KR1019880011119A KR880011119A KR900004146A KR 900004146 A KR900004146 A KR 900004146A KR 1019880011119 A KR1019880011119 A KR 1019880011119A KR 880011119 A KR880011119 A KR 880011119A KR 900004146 A KR900004146 A KR 900004146A
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KR
South Korea
Prior art keywords
signal
dtb
signals
output
processor
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Application number
KR1019880011119A
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Korean (ko)
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KR950005802B1 (en
Inventor
이영진
Original Assignee
최근선
주식회사 금성사
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Priority to KR1019880011119A priority Critical patent/KR950005802B1/en
Publication of KR900004146A publication Critical patent/KR900004146A/en
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Publication of KR950005802B1 publication Critical patent/KR950005802B1/en

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    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F13/00Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
    • G06F13/38Information transfer, e.g. on bus

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Transfer Systems (AREA)
  • Communication Control (AREA)
  • Bus Control (AREA)

Abstract

내용 없음No content

Description

VME 버스의 DTB용 데이타 전송장치Data transfer device for DTB on VME bus

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제4도는 본 발명에 따른 DTB마스터 구성 블록도.4 is a block diagram of a DTB master configuration according to the present invention.

제5도는 본 발명에 따른 ASM(Asynchronous State Machine)구성 블록도.5 is a block diagram illustrating an ASM configuration in accordance with the present invention.

Claims (1)

VME(Valued Memory Enable)방식의 데이타 전송 버스를 이용한 DTB마스터와 DTB슬레이브간의 데이타 전송에 있어서, FIFO램(11) 상태 신호인 FULL* 와 EMPTY 및 WR*, WR신호가 인가되는 앤드게이트(39,41,42)와 오아게이트(40)에 의해 D플립플롭(38)에 클럭이 인가되고, 버스 요구 및 응답 신호인 REQ, ACK* 신호 및 BERR*(버스에러) 신호와 DTACK* 신호에 의해 클리어되는 상기 D플립플롭(38)의 출력 AS*에 의해 DSO* 및 DSI* 신호 출력용 3상태 버퍼(51,52)가 동작되도록하여 ASM을 구성하며, 프로세서는 PWRITE*신호에 의해 동작되는 버퍼(12)를 통해 FIFO램(11)에 연결되고, 프로세서로부터의 PD00-PD31과 PLATCH*신호에 의해 동작되는 래치(31) 의 WR*신호와 DTB리퀘스터(37)의 ACK*신호가 인가되는 오아게이트(29)에 의해 동작되는 버퍼(15)를 통해 상기 FIFO램(11)의 출력이 DTB로 출력되며, 상기 래치(31)로부터의 반전 출력 WR신호와 ACK*신호가 인가되는 오아게이트(28)에 의해 동작되는 버퍼(14)를 통해 DTB상의 데이타가 FIFO램(11)에 저장되고, 프로세서의 PREAD*신호에 의해 동작되는 버퍼(13)에 의해 FIFO램(11)의 데이타가 프로세서로 출력되며, DTB상의 DTACK*신호나 상기 ACK*신호를 클럭으로 받고 프로세서의 PD00-PD07 및 PLOAD 신호에 의해 동작하는 다운카운터(33)의 출력은 D플립플롭(34)에 클럭으로 인가되고, TREGGER*(ASM시작)신호와 BERR*및 PRESET*신호에 의해 각각 프리세트되거나 클리어 되는 상기 D플립플롭(34)에 의해 DTB리궤스터(37)로 REQ(버스요구)신호가 인가되도록 하여 각 신호의 에지에서 구동되는 ASM으로 구성된 DTB로 불필요한 시간 지연을 없애도록한 VME버스의 DTB용 데이타 전송장치.In the data transfer between the DTB master and the DTB slave using the VME (Valued Memory Enable) data transfer bus, the AND gate 39 to which the FULL *, EMPTY, WR *, and WR signals, which are the FIFO RAM 11 status signals, are applied, The clock is applied to the D flip-flop 38 by the 41 and 42 and the oragate 40, and cleared by the REQ, ACK * signal, the BERR * (bus error) signal, and the DTACK * signal, which are bus request and response signals. The ASM is configured by operating the three-state buffers 51 and 52 for outputting the DSO * and DSI * signals by the output AS * of the D flip-flop 38, and the processor 12 operates the buffer 12 operated by the PWRITE * signal. An OR gate connected to the FIFO RAM 11 through which the WR * signal of the latch 31 and the ACK * signal of the DTB requester 37 are applied by the PD00-PD31 and PLATCH * signals from the processor. The output of the FIFO RAM 11 is output to the DTB via the buffer 15 operated by 29, and from the latch 31 The data on the DTB is stored in the FIFO RAM 11 through the buffer 14 operated by the OR gate 28 to which the inverted output WR signal and the ACK * signal are applied, and the buffer operated by the PREAD * signal of the processor ( 13) the data of the FIFO RAM 11 is output to the processor, and the output of the down counter 33 which receives the DTACK * signal on the DTB or the ACK * signal as a clock and operates by the PD00-PD07 and PLOAD signals of the processor. Is applied to the D flip-flop 34 as a clock and is preset by the TREGGER * (ASM start) signal and the BERR * and PRESET * signals, respectively. DTB data transmission device of VME bus which eliminates unnecessary time delay with DTB consisting of ASM driven at the edge of each signal by applying REQ (bus request) signal. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880011119A 1988-08-31 1988-08-31 Data transmission unit for dtb of versa module europe bus KR950005802B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019880011119A KR950005802B1 (en) 1988-08-31 1988-08-31 Data transmission unit for dtb of versa module europe bus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019880011119A KR950005802B1 (en) 1988-08-31 1988-08-31 Data transmission unit for dtb of versa module europe bus

Publications (2)

Publication Number Publication Date
KR900004146A true KR900004146A (en) 1990-03-28
KR950005802B1 KR950005802B1 (en) 1995-05-31

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Application Number Title Priority Date Filing Date
KR1019880011119A KR950005802B1 (en) 1988-08-31 1988-08-31 Data transmission unit for dtb of versa module europe bus

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KR (1) KR950005802B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100366048B1 (en) * 1996-03-19 2003-03-06 삼성탈레스 주식회사 Data transmitting apparatus of vme board

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100366048B1 (en) * 1996-03-19 2003-03-06 삼성탈레스 주식회사 Data transmitting apparatus of vme board

Also Published As

Publication number Publication date
KR950005802B1 (en) 1995-05-31

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