參數(shù)資料
型號： MPC857T
廠商： Motorola, Inc.
英文描述： Hardware Specifications
中文描述： 硬件規(guī)格
文件頁數(shù)： 21/88頁
文件大小： 1104K
代理商： MPC857T
MOTOROLA
MPC862/857T/857DSL Hardware Specifications
For More Information On This Product,
Go to: www.freescale.com
21
Bus Signal Timing
B31
CLKOUT falling edge to CS valid - as
requested by control bit CST4 in the
corresponding word in the UPM
(MAX = 0.00 X B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B31a CLKOUT falling edge to CS valid - as
requested by control bit CST1 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B31b CLKOUT rising edge to CS valid - as
requested by control bit CST2 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
ns
B31c CLKOUT rising edge to CS valid- as
requested by control bit CST3 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.30)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B31d CLKOUT falling edge to CS valid, as
requested by control bit CST1 in the
corresponding word in the UPM
EBDF = 1 (MAX = 0.375 x B1 + 6.6)
9.40
18.00
7.60
16.00
13.30
14.10
11.30
12.30
ns
B32
CLKOUT falling edge to BS valid- as
requested by control bit BST4 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B32a CLKOUT falling edge to BS valid - as
requested by control bit BST1 in the
corresponding word in the UPM,
EBDF = 0 (MAX = 0.25 x B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B32b CLKOUT rising edge to BS valid - as
requested by control bit BST2 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
ns
B32c CLKOUT rising edge to BS valid - as
requested by control bit BST3 in the
corresponding word in the UPM
(MAX = 0.25 x B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B32d CLKOUT falling edge to BS valid- as
requested by control bit BST1 in the
corresponding word in the UPM,
EBDF = 1 (MAX = 0.375 x B1 + 6.60)
9.40
18.00
7.60
16.00
13.30
14.10
11.30
12.30
ns
B33
CLKOUT falling edge to GPL valid - as
requested by control bit GxT4 in the
corresponding word in the UPM
(MAX = 0.00 x B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
Table 7. Bus Operation Timings (continued)
Num
Characteristic
33 MHz
40 MHz
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
F
Freescale Semiconductor, Inc.
n
.
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