參數(shù)資料
型號: XRT82D20IW
廠商: EXAR CORP
元件分類: 數(shù)字傳輸電路
英文描述: SINGLE CHANNEL E1 LINE INTERFACE UNIT
中文描述: DATACOM, PCM TRANSCEIVER, PDSO28
封裝: 0.300 INCH, SOJ-28
文件頁數(shù): 30/49頁
文件大?。?/td> 735K
代理商: XRT82D20IW
XRT82L34
QUAD T1/E1/J1 LINE TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. 1.1.0
á
28
MICROPROCESSOR INTERFACE
XRT82L34 is equipped with a microprocessor inter-
face for easy device configuration. The parallel port of
the XRT82L34 is compatible with both Intel and Mo-
torola address and data buses.
The device has 4-bit address ADD[3:0] input and 8-bit
bi-directional data bus ADD[7:0]. The signals required
for a generic microprocessor to access the internal
registers are described in Table 13.
F
IGURE
17. T
RANSMIT
C
LOCK
AND
I
NPUT
D
ATA
T
IMING
T
CLKF
T
CLKR
T
CLKP
TxPOS/TDATA
or
TxNEG
TxCLK
Data can be active
high or active low.
Note: Set TCLKE bit-4 in Command Control Register 0 to select
TxCLK
inversion.
T
HO
T
SU
F
IGURE
18. R
ECEIVE
C
LOCK
AND
O
UTPUT
D
ATA
T
IMING
.
R
HO
R
SU
R
CLKF
R
CLKR
R
DY
RxPOS
or
RxNEG
RxCLK
Data can be active
high or active low.
Note: Set RCLKE bit=5 in Command Control Register 0 to select
RxCLK
inversion.
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