CS61535A View Datasheet(PDF) - Cirrus Logic

Part Name

Description

MFG CO.

CS61535A

T1/E1 Line Interface

Cirrus Logic 

-XO ¶

&21),'(17,$/

CS61535A

LEN0, LEN1, LEN2 - Line Length Selection, Pins 23, 24 and 25. (Hardware and Extended

Hardware Modes)

'HWHUPLQHV WKH VKDSH DQG DPSOLWXGH RI WKH WUDQVPLWWHG SXOVH WR DFFRPPRGDWH VHYHUDO FDEOH W\SHV

DQG OHQ JWKV 6HH 7 DEOH  IRU LQIR UPDWLRQ RQ OLQ H OHQJWK V HOHFWLRQ $OVR FRQ WUROV WKH UHFHLYHU

VOLFLQJ OHYHO DQG WKH OLQH FRGH LQ ([WHQGHG +DUGZDUH 0RGH

LLOOP - Local Loopback, Pin 27. (Hardware and Extended Hardware Modes)

6HWWLQJ //223 WR D ORJLF  URXWHV WKH WUDQVPLW FORFN DQG GDWD WKURXJK WR W KH UHFHLYH FORFN DQG

GDWD SLQV 732671(* RU 7'$7$ DUH VWLOO WUDQVPLWWHG XQOHVV RYHUULGGHQ E\ D 7$26 UHTXHVW

,QSXWV RQ 57,3 DQG 55,1* DUH LJQRUHG

MODE - Mode Select, Pin 5.

'ULYLQJ W KH 02'( S LQ KLJK S XWV W KH &6$ OL QH LQWHUIDFH L Q W KH +RVW 0R GH ,Q WK H K RVW

PRGH D VHULDO FRQWURO SRUW LV XVHG WR FRQWURO WKH &6$ OLQH LQWHUIDFH DQG GHWHUPLQH LWV VWDWXV

*URXQGLQJ WKH 02 '( SLQ SXW V WKH &6 $ OL QH L QWHUIDFH LQ WKH +D UGZDUH 0 RGH Z KHUH

FRQILJXUDWLRQ DQG VWDWXV DUH FRQWUROOHG E\ GLVFUHWH SLQV )ORDWLQJ WKH 02'( SLQ RU GULYLQJ LW WR

 9 SX WV WK H & 6$ LQ ([WHQGHG +DU GZDUH 0R GH ZKH UH FR QILJXUDWLRQ DQG VW DWXV D UH

FRQWUROOHG E\ GL VFUHWH SLQV :KHQ IORD WLQJ 02'( WKH UH VKRXOG EH QR H[W HUQDO ORDG RQ WKH SLQ

02'( GHILQHV WKH VWDWXV RI  SLQV VHH 7DEOH 

PCS - Parallel Chip Select, Pin 18. (Extended Hardware Mode)

6HWWLQJ 3&6 K LJK FDX VHV W KH & 6$ O LQH LQW HUIDFH WR LJQ RUH W KH 7&2'( 5&2'( / (1

/(1 /(1 5/223 //223 DQG 7$26 LQSXWV

RCODE - Receiver Decoder Select, Pin 17. (Extended Hardware Mode)

6HWWLQJ 5&2'( O RZ HQ DEOHV %= 6 RU +'%  ]H UR V XEVWLWXWLRQ LQ W KH UHF HLYHU GHF RGHU 6HW WLQJ

5&2'( KLJK HQDEOHV WKH $0, UHFHLYHU GHFRGHU VHH 7DEOH 

RLOOP - Remote Loopback, Pin 26. (Hardware and Extended Hardware Modes)

6HWWLQJ 5/ 223 WR D OR JLF  FDXVHV WKH UHFRYHUHG FORFN DQG GDWD WR EH V HQW WKUR XJK WKH MLWWHU

DWWHQXDWRU LI DFWLYH DQG WKURXJK WKH GULYHU EDFN WR WKH OLQH 7KH UHFRYHUHG VLJQDO LV DOVR VHQW WR

5&/. DQG 532651(* RU 5'$7$ $Q\ 7$26 UHTXHVW LV LJQRUHG

6LPXOWDQHRXVO\ WDNLQJ 5/223 DQG //223 KLJK IRU DW OHDVW  QV LQLWLDWHV D GHYLFH UHVHW

SCLK - Serial Clock, Pin 27. (Host Mode)

&ORFN XVHG WR UHDG RU ZULWH WKH VHULDO SRUW UHJLVWHUV 6&/. FDQ EH HLWKHU KLJK RU ORZ ZKHQ WKH OLQH

LQWHUIDFH LV VHOHFWHG XVLQJ WKH &6 SLQ

SDI - Serial Data Input, Pin 24. (Host Mode)

'DWD IRU WKH RQFKLS UHJLVWHU 6DPSOHG RQ WKH ULVLQJ HGJH RI 6&/.

SDO - Serial Data Output, Pin 25. (Host Mode)

6WDWXV DQ G FR QWURO LQIR UPDWLRQ IURP WKH RQ FKLS UHJL VWHU ,I &/ .( LV KL JK 6'2 LV YDOLG RQ WK H

ULVLQJ HGJH RI 6&/. ,I &/.( LV ORZ 6'2 LV YDOLG RQ WKH IDOOLQJ HGJH RI 6&/. 7KLV SLQ JRHV WR

D KLJKLPSHGDQFH VWDWH ZKHQ WKH VHULDO SRUW LV EHLQJ ZULWWHQ WR RU DIWHU ELW ' LV RXWSXW

DS40F3

25

Share Link: