參數(shù)資料
型號: XRT83L34IV-F
廠商: Exar Corporation
文件頁數(shù): 94/99頁
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 QUAD 128TQFP
標(biāo)準(zhǔn)包裝: 72
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 4/4
規(guī)程: T1,E1,J1
電源電壓: 3.135 V ~ 3.465 V
安裝類型: 表面貼裝
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-TQFP(14x20)
包裝: 托盤
其它名稱: XRT83L34IV-F-ND
XRT83L34
xr
REV. 1.0.1
QUAD T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
91
MICROPROCESSOR INTERFACE I/O TIMING
INTEL INTERFACE TIMING - ASYNCHRONOUS
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 80188 family of microprocessors. The inter-
face timing shown in Figure 34 and Figure 36 is described in Table 50.
FIGURE 33. RECEIVE CLOCK AND OUTPUT DATA TIMING
FIGURE 34. INTEL ASYNCHRONOUS PROGRAMMED I/O INTERFACE TIMING
RCLK
R
RCLK
F
RCLK
RPOS
or
RNEG
R
DY
R
HO
A D D R [6 :0 ]
DA T A [7 :0 ]
RD _ D S
WR _ R /W
RD Y _ DT A C K
V a lid D a ta fo r R e a db a ck
D a ta A vaila ble to W rite Into the LIU
RE AD O P E RAT IO N
W RIT E O P ERAT IO N
t
0
t
0
t
1
t
3
t
2
t
4
Va lid Ad d re ss
V a lid A dd re ss
t
5
t
5
AL E_ AS
CS
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