參數(shù)資料
型號： MPC850EC
廠商： Motorola, Inc.
英文描述： Communications Controller Hardware Specifications
中文描述： 通信控制器的硬件規(guī)格
文件頁數(shù)： 16/68頁
文件大?。?/td> 384K
代理商： MPC850EC
16
MPC850 (Rev. A/B/C) Hardware Specifications
MOTOROLA
Layout Practices
B32b
CLKOUT rising edge to BS valid
- as requested by control bit
BST2 in the corresponding word
in the UPM
1.50
8.00
1.50
8.00
1.50
8.00
—
50.00
ns
B32c
CLKOUT rising edge to BS valid
- as requested by control bit
BST3 in the corresponding word
in the UPM
5.00
12.00
8.00
14.00
6.00
13.00
0.250
50.00
ns
B32d
CLKOUT falling edge to BS valid
- as requested by control bit
BST1 in the corresponding word
in the UPM, EBDF = 1
9.00
14.00
13.00
18.00
11.00
16.00
0.375
50.00
ns
B33
CLKOUT falling edge to GPL
valid - as requested by control bit
GxT4 in the corresponding word
in the UPM
1.50
6.00
1.50
6.00
1.50
6.00
—
50.00
ns
B33a
CLKOUT rising edge to GPL
valid - as requested by control bit
GxT3 in the corresponding word
in the UPM
5.00
12.00
8.00
14.00
6.00
13.00
0.250
50.00
ns
B34
A[6–31] and D[0–31] to CS valid
- as requested by control bit
CST4 in the corresponding word
in the UPM
3.00
—
6.00
—
4.00
—
0.250
50.00
ns
B34a
A[6–31] and D[0–31] to CS valid
- as requested by control bit
CST1 in the corresponding word
in the UPM
8.00
—
13.00
—
11.00
—
0.500
50.00
ns
B34b
A[6–31] and D[0–31] to CS valid
- as requested by CST2 in the
corresponding word in UPM
13.00
—
21.00
—
17.00
—
0.750
50.00
ns
B35
A[6–31] to CS valid - as
requested by control bit BST4 in
the corresponding word in UPM
3.00
—
6.00
—
4.00
—
0.250
50.00
ns
B35a
A[6–31] and D[0–31] to BS valid
- as requested by BST1 in the
corresponding word in the UPM
8.00
—
13.00
—
11.00
—
0.500
50.00
ns
B35b
A[6–31] and D[0–31] to BS valid
- as requested by control bit
BST2 in the corresponding word
in the UPM
13.00
—
21.00
—
17.00
—
0.750
50.00
ns
B36
A[6–31] and D[0–31] to GPL
valid - as requested by control bit
GxT4 in the corresponding word
in the UPM
3.00
—
6.00
—
4.00
—
0.250
50.00
ns
Table 6. Bus Operation Timing
1
(continued)
Num
Characteristic
50 MHz
66 MHz
80 MHz
FFACT
Cap Load
(default
50 pF)
Unit
Min
Max
Min
Max
Min
Max
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