KR960025058A - TIDBUS matching circuit of electronic exchange - Google Patents

TIDBUS matching circuit of electronic exchange Download PDF

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Publication number
KR960025058A
KR960025058A KR1019940039449A KR19940039449A KR960025058A KR 960025058 A KR960025058 A KR 960025058A KR 1019940039449 A KR1019940039449 A KR 1019940039449A KR 19940039449 A KR19940039449 A KR 19940039449A KR 960025058 A KR960025058 A KR 960025058A
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KR
South Korea
Prior art keywords
signal
generating
peripheral device
circuit
dual port
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KR1019940039449A
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Korean (ko)
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KR0139959B1 (en
Inventor
김동갑
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정장호
Lg 정보통신 주식회사
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Priority to KR1019940039449A priority Critical patent/KR0139959B1/en
Publication of KR960025058A publication Critical patent/KR960025058A/en
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Publication of KR0139959B1 publication Critical patent/KR0139959B1/en

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Abstract

본 발명은 전자교환기의 주변장치와 주변장치 제어부에서 티디버스와 듀얼 포트 램으로 통신전송을 행할 때 티디버스를 정합시켜 주는 회로와 관련된 것으로서, 종래에는 이러한 시스템에서 주변장치와 주변장치 제어부가 듀얼 포트 램으로 동시에 동일 어드레스를 액세스하였을 때 한쪽 포트에서는 데이타가 유실되는 현상을 피하기 어려웠다.The present invention relates to a circuit for matching a TD bus when performing communication transmission from the peripheral device and the peripheral device control unit of the electronic exchange to the TD bus and the dual port RAM. When RAM accesses the same address at the same time, it is difficult to avoid data loss on one port.

본 발명은 이러한 문제점을 개선할 수 있도록 주변장치(2)와 주변장치 제어부(1)에서 듀얼 포트 램(19)을 액세스할 때 송신모드에서는 데이타 로드동작을 반복하여 로드가 성공하면 데이타를 해당 장치에 송출하고, 수신모드에서는 데이타 기록동작을 반복하여 처리하는 티디버스 정합회로를 제공하는 것을 목적으로 하여 이러한 시스템의 주변장치 제어부와 주변장치간의 티디버스 통신 작업의 신뢰성을 양호히 확보할 수 있도록 한다.When the dual device RAM 19 is accessed by the peripheral device 2 and the peripheral device controller 1, the present invention repeats the data load operation in the transmission mode so that the data is loaded if the load succeeds. In order to provide a TIDBUS matching circuit for transmitting to and receiving data repeatedly in the receiving mode, it is possible to ensure a reliable TIDBUS communication operation between the peripheral control unit and the peripheral device of such a system.

Description

전자교환기의 티디버스 정합회로TIDBUS matching circuit of electronic exchange

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

제4도는 본 발명에 의한 티디버스 정합회로를 나타낸 실시예 회로 불럭도, 제5도는 제4도와 관련된 동작 타이밍 챠트.4 is an exemplary circuit block diagram showing a TID bus matching circuit according to the present invention, and FIG. 5 is an operation timing chart related to FIG.

Claims (1)

시스템에서 모드 및 어드레스 직병렬 변환회로(21), 모드 디코더(22), 어드레스 비교기(23), 송신 병직렬 변환회로(24), 수신 직병렬 변환회로(25), 레디신호 발생회로(26), 듀얼 포트 램(27)등을 포함하는 전자교환기의 주변장치(2)와 주변장치 제어부(1)와의 티디버스 정합회로에 있어서, 상기 어드레스 비교기(23)와 모드디코더(22)로부터 입력되는 신호와 클럭(CLK), 프레임 싱크에 의하여 제1신호와 제1신호를 생성하는 제1제어신호 발생회로(28)와; 상기 듀얼 포트램(27)측에서 인가되는신호와 클럭(CLK)에 의해신호를 래치하여 제2신호와 BUSYLC 신호를 생성하는 제2제어신호 발생회로(29)와; 상기 모드디코더(22)로부터의 신호와 클럭(CLK)과 상기 레디신호 발생회로(26)로 부터의신호에 의하여 제3신호와 제1신호를 생성하는 제3제어신호 발생회로(30)와; 상기 제1신호와 제2신호와 BUSYLC 신호와 상기 모드 디코더(22)로부터의 신호와 클럭(CLK)에 의해 제2신호와신호와 제2신호와신호를 생성하여신호는 상기 듀얼 포트 램(27)으로,신호는 상기 송신 병직렬 변환회로(24)로 인가하는 제4제어신호로 발생회로(31)와; 상기 제1신호와제2신호를 논리곱하여신호를 생성하고, 이를 상기 레디신호 발생부(26)로 인가하는 제1앤드게이트(32)와; 상기 제1신호와 제2신호와 제3신호를 논리곱하여신호를 생성하고, 이를 상기 듀얼 포트 램(27)으로 인가하는 제2앤드게이트(33) 및; 상기 제1신호와 제2신호를 논리곱하여신호를 생성하고, 이를 상기 듀얼 포트 램(27)으로 인가하는 제3앤드게이트(34)를 포함하는 것을 특징으로 하는 전자교환기의 티디버스 정합회로.In the system, the mode and address serial / parallel conversion circuit 21, the mode decoder 22, the address comparator 23, the transmission parallel / parallel conversion circuit 24, the reception serial / parallel conversion circuit 25, and the ready signal generating circuit 26 And a signal input from the address comparator 23 and the mode decoder 22 in the TID bus matching circuit between the peripheral device 2 of the electronic switch including the dual port RAM 27 and the peripheral device controller 1. And clock (CLK), frame sync By 1st Signal and first A first control signal generating circuit 28 for generating a signal; Is applied from the dual port ram 27 side By signal and clock (CLK) Latch the signal to a second A second control signal generation circuit 29 for generating a signal and a BUSYLC signal; The signal from the mode decoder 22 and the clock CLK and from the ready signal generating circuit 26 3rd by signal Signal and first A third control signal generation circuit 30 for generating a signal; The first Signal and second A second signal by the signal, the BUSYLC signal, the signal from the mode decoder 22, and the clock CLK. Signal and Signal and second Signal and To generate a signal Signal to the dual port RAM 27, The signal is a fourth control signal which is applied to the transmission parallel-serial conversion circuit 24; The first Signal and second By multiplying the signal A first end gate 32 generating a signal and applying the same to the ready signal generator 26; The first Signal and second Signal and third By multiplying the signal A second and gate 33 for generating a signal and applying it to the dual port RAM 27; The first Signal and second By multiplying the signal And a third end gate (34) for generating a signal and applying the same to the dual port RAM (27). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019940039449A 1994-12-30 1994-12-30 TIDBUS matching circuit of electronic exchange KR0139959B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019940039449A KR0139959B1 (en) 1994-12-30 1994-12-30 TIDBUS matching circuit of electronic exchange

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019940039449A KR0139959B1 (en) 1994-12-30 1994-12-30 TIDBUS matching circuit of electronic exchange

Publications (2)

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KR960025058A true KR960025058A (en) 1996-07-20
KR0139959B1 KR0139959B1 (en) 1998-07-01

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