MOTOROLA
參數(shù)資料
型號(hào): XRT83L38IB-F
廠商: Exar Corporation
文件頁(yè)數(shù): 84/87頁(yè)
文件大?。?/td> 0K
描述: IC LIU T1/E1/J1 OCTAL 225BGA
標(biāo)準(zhǔn)包裝: 84
類型: 線路接口裝置(LIU)
驅(qū)動(dòng)器/接收器數(shù): 8/8
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: 225-BGA
供應(yīng)商設(shè)備封裝: 225-BGA(19x19)
包裝: 托盤
XRT83L38
82
REV. 1.0.2
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 31 and Figure 32. The I/O specifications are shown in Table 52.
FIGURE 31. MOTOROLA 68K ASYNCHRONOUS PROGRAMMED I/O INTERFACE TIMING
TABLE 52: 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 32. MICROPROCESSOR INTERFACE TIMING - RESET PULSE WIDTH
CS
ADD R[6:0]
DATA[7:0]
RD_D S
WR _R /W
RD Y_D TACK
Valid Data for Readback
Data Available to W rite Into the LIU
RE AD OP E RATION
W RITE O PE RATION
t
0
t
0
t
1
t
2
Valid Address
Valid Addres s
t
3
t
3
t
1
t
2
A LE_AS
Reset
t9
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