MOTOROLA
參數(shù)資料
型號: XRT83VL38IB-F
廠商: Exar Corporation
文件頁數(shù): 93/95頁
文件大?。?/td> 0K
描述: IC LIU SH T1/E1/J1 OCTAL 225BGA
標準包裝: 84
類型: 線路接口裝置(LIU)
驅(qū)動器/接收器數(shù): 8/8
規(guī)程: E1
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 225-BGA
供應商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
其它名稱: 1016-1481
XRT83VL38IB-F-ND
XRT83VL38
89
REV. 1.0.1
OCTAL T1/E1/J1 LH/SH TRANSCEIVER WITH CLOCK RECOVERY AND JITTER ATTENUATOR
MOTOROLA ASYCHRONOUS INTERFACE TIMING
The signals used in the Motorola microprocessor interface mode are: Address Strobe (AS), Data Strobe (DS),
Read/Write Enable (R/W), Chip Select (CS), Address and Data bits. The interface is compatible with the timing
of a Motorola 68000 microprocessor family with up to 16.67 MHz clock frequency. The interface timing is
shown in Figure 38 and Figure 39. The I/O specifications are shown in Table 57.
FIGURE 38. MOTOROLA 68K ASYNCHRONOUS PROGRAMMED I/O INTERFACE TIMING
TABLE 57: ASYNCHRONOUS - MOTOROLA 68K - INTERFACE TIMING SPECIFICATION
SYMBOL
PARAMETER
MIN
MAX
UNITS
t0
Valid Address to CS Falling Edge
0
-
ns
t1
CS Falling Edge to DS Assert
20
-
ns
t2
DS Assert to DTACK Assert
-
135
ns
NA
DS Pulse Width (t2)
135
-
ns
t3
CS Falling Edge to AS Falling Edge
0
-
ns
Reset pulse width - both Motorola and Intel Operations (see
t9
Reset pulse width
10
s
FIGURE 39. MICROPROCESSOR INTERFACE TIMING - RESET PULSE WIDTH
CS
ADDR[6:0]
DATA[7:0]
RD_DS
WR_R/W
RDY_DTACK
Valid Data for Readback
Data Available to W rite Into the LIU
READ OPERATIO N
W RITE OPERATIO N
t
0
t
0
t
1
t
2
Valid Address
t
3
t
3
t
1
t
2
ALE_AS
Reset
t9
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