參數資料
型號: XRT83L34
廠商: Exar Corporation
英文描述: QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
中文描述: 四T1/E1/J1收發(fā)左/上海收發(fā)器和時鐘恢復和抖動衰減器
文件頁數: 77/82頁
文件大小: 447K
代理商: XRT83L34
XRT83L34
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
REV. P1.3.4
PRELIMINARY
74
MICROPROCESSOR INTERFACE I/O TIMING
I
NTEL
I
NTERFACE
T
IMING
- A
SYNCHRONOUS
The signals used for the Intel microprocessor interface are: Address Latch Enable (ALE), Read Enable (RD),
Write Enable (WR), Chip Select (CS), Address and Data bits. The microprocessor interface uses minimum ex-
ternal glue logic and is compatible with the timings of the 8051 or 80C188 with an 8-16 MHz clock frequency,
and with the timings of x86 or i960 family or microprocessors. The interface timing shown in
Figure 30
and
Figure 32
is described in
Table 49
.
F
IGURE
29. R
ECEIVE
C
LOCK
AND
O
UTPUT
D
ATA
T
IMING
F
IGURE
30. I
NTEL
A
SYNCHRONOUS
P
ROGRAMMED
I/O I
NTERFACE
T
IMING
RCLK
R
RCLK
F
RCLK
RPOS
or
RNEG
R
DY
R
HO
ADDR[6:0]
DATA[7:0]
RD_DS
WR_R/W
RDY_DTACK
Valid Data for Readback
Data Available to Write Into the LIU
READ OPERATION
WRITE OPERATION
t
0
t
0
t
1
t
3
t
2
t
4
Valid Address
Valid Address
t
5
t
5
ALE_AS
CS
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