CS61535A-IL1Z 查看數據表（PDF） - Cirrus Logic

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CS61535A-IL1Z

T1/E1 Line Interface

Cirrus Logic 

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CS61535A

CS

SCLK

SDI

SDO

R/W 0 0 0 0 1 0 0 D0 D1 D2 D3 D4 D5 D6 D7

Address/Command Byte

Data Input/Output

D0 D1 D2 D3 D4 D5 D6 D7

Figure 13. Input/Output Timing

SUR[LPDWHO\ WKUH H 9ROWV : KHQ W KLV WK UHVKROG LV

FURVVHG W KH GHYLFH Z LOO GH OD\ I RU DE RXW  PV W R

DOORZ WKH SRZHU VXSSO\ WR UHDFK RSHUDWLQJ YROWDJH

$IWHU WKLV GHOD\ FDOLEUDWLRQ RI WKH GHOD\ OLQHV XVHG

LQ WKH WU DQVPLW DQ G U HFHLYH VHFW LRQV FR PPHQFHV

7KH GHOD\ OLQ HV FDQ EH FDO LEUDWHG RQ O\ LI D U HIHU

HQFH FORFN LV S UHVHQW 7KH U HIHUHQFH FORFN IRU WKH

UHFHLYHU LV SURYLGHG E\ $ &/., RU E\ WKH FU\VWDO

RVFLOODWRU LI $&/., LV QRW SUHVHQW 7KH UHIHUHQFH

FORFN IRU WKH WUDQVPLWWHU LV SURYLGHG E\ 7&/. 7KH

LQLWLDO FDOLEUDWLRQ VKRXOG WDNH OHVV WKDQ  PV

,Q RSHUDWLRQ WKH GHOD\ OLQHV DUH FRQWLQXRXVO\ FDOL

EUDWHG P DNLQJ WK H SH UIRUPDQFH R I W KH G HYLFH

LQGHSHQGHQW RI SRZHU VXSSO\ RU WHPSHUDWXUH YDUL

DWLRQV 7 KH FRQWLQXRXV FDOLEUDWLRQ IX QFWLRQ

IRUHJRHV D Q\ UH TXLUHPHQW WR UH VHW WK H OLQ H LQW HU

IDFH ZKHQ LQ RSHUDWLRQ +RZHYHU D UHVHW IXQFWLRQ

LV DYDLODEOH ZKLFK ZLOO FOHDU DOO UHJLVWHUV

,Q WKH +DUGZDUH DQG ([WHQGHG +DUGZDUH PRGHV D

UHVHW UHTXHVW LV PDGH E\ VLPXOWDQHRXVO\ VHWWLQJ ERWK

5/223 DQG //223 KLJK IRU DW OHDVW  QV 5HVHW

ZLOO LQLWLDWH RQ WKH I DOOLQJ HGJH RI WKH UHV HW UHTXHVW

IDOOLQJ HGJH RI 5/ 223 DQG / /223 ,Q WKH +RV W

0RGH D UHV HW LV LQLWLDWHG E\ VLPXOWDQHRXVO\ ZULWLQJ

5/223 DQG //223 WR WKH UHJLVWHU ,Q HLWKHU PRGH

D UHVHW ZLOO VHW DOO UHJLVWHUV WR  DQG VHW /26 KLJK

Serial Interface

,Q WKH +RVW 0RGH SLQV  WKURXJK  VHUYH DV D

PLFURSURFHVVRUPLFURFRQWUROOHU LQWHU IDFH 2QH

HLJKWELW UHJLVWHU FDQ EH ZULWWHQ WR YLD WKH 6', SLQ

RU UHDG IURP WKH 6'2 S LQ DW WKH FORFN UDWH GHWHU

PLQHG E\ 6&/ . 7 KURXJK WKLV UHJLV WHU D KRV W

FRQWUROOHU FDQ EH XVHG WR FRQWURO RSHUDWLRQDO FKDU

DFWHULVWLFV DQG P RQLWRU GHYLFH VW DWXV 7 KH V HULDO

SRUW UHD GZULWH WL PLQJ LV LQG HSHQGHQW RI WKH V \V

WHP WUDQVPLW DQG UHFHLYH WLPLQJ

'DWD WUDQVIHUV DUH LQLWLDWHG E\ WDNLQJ WKH FKLS VH

OHFW L QSXW &6 O RZ &6 PXVW LQ LWLDOO\ E H K LJK

6&/. PD\ E H H LWKHU KL JK R U ORZ ZK HQ &6 L Q

LWLDOO\ JRH V O RZ $GG UHVV D QG L QSXW GD WD E LWV DUH

FORFNHG LQ RQ W KH UL VLQJ H GJH RI 6&/ . 'DWD RQ

6'2 LV YD OLG DQG V WDEOH RQ WKH IDOO LQJ HGJ H RI

6&/. ZKHQ &/.( LV ORZ DQG RQ WKH ULVLQJ HGJH

RI 6&/. ZKHQ &/.( LV KLJ K 'DWD WUDQVIHUV DUH

WHUPLQDWHG E\ V HWWLQJ &6 K LJK &6 PD\ J R KL JK

QR VRRQHU WKDQ  QV DIWHU WKH ULV LQJ HGJH RI WKH

6&/. F \FOH FR UUHVSRQGLQJ WR WKH ODV W ZULW H ELW 

)RU D VHULDO GD WD UHDG &6 PD\ JR KLJK DQ\ WLPH

WR WHUPLQDWH WKH RXWSXW

)LJXUH  V KRZV WKH WLPLQJ UHODWLRQVKLSV IRU GD WD

WUDQVIHUV ZKHQ &/.(  :KHQ &/.(  GDWD

RXWSXW IURP WKH VHULDO SRUW 6'2 LV Y DOLG R Q W KH

IDOOLQJ HGJH RI 6&/. )RU &/.(  GDWD ELW '

LV KHOG WR WKH IDOOLQJ HGJH RI WKH WK FORFN F\FOH

IRU & /.(  G DWD EL W ' LV K HOG WR WK H UL VLQJ

HGJH RI WK H WK FORFN F\FOH 6'2 JRHV WR D KL JK

LSB, first bit

0

R/W

Read/Write Select; 0 = write, 1 =

read

1 ADD0 LSB of address, Must be 0

2 ADD1 Must be 0

3 ADD2 Must be 0

4 ADD3 Must be 0

5 ADD4 Must be 1

6 - Reserved - Must be 0

Table 7. Address/Command Byte

18

DS40F3

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