參數(shù)資料
型號(hào): XPC862
廠商: Motorola, Inc.
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 22/88頁
文件大?。?/td> 483K
代理商: XPC862
22
MPC862/857T/857DSL Hardware Specifications
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Bus Signal Timing
B33a CLKOUT rising edge to GPL Valid - as
requested by control bit GxT3 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
B34 A(0:31), BADDR(28:30), and D(0:31)
to CS valid - as requested by control
bit CST4 in the corresponding word in
the UPM (MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
B34a A(0:31), BADDR(28:30), and D(0:31)
to CS valid - as requested by control
bit CST1 in the corresponding word in
the UPM (MIN = 0.50 x B1 - 2.00)
13.20
10.50
8.00
5.60
ns
B34b A(0:31), BADDR(28:30), and D(0:31)
to CS valid - as requested by CST2 in
the corresponding word in UPM
(MIN = 0.75 x B1 - 2.00)
20.70
16.70
13.00
9.40
ns
B35
A(0:31), BADDR(28:30) to CS valid -
as requested by control bit BST4 in the
corresponding word in the UPM
(MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
B35a A(0:31), BADDR(28:30), and D(0:31)
to BS valid - As Requested by BST1 in
the corresponding word in the UPM
(MIN = 0.50 x B1 - 2.00)
13.20
10.50
8.00
5.60
ns
B35b A(0:31), BADDR(28:30), and D(0:31)
to BS valid - as requested by control bit
BST2 in the corresponding word in the
UPM (MIN = 0.75 x B1 - 2.00)
20.70
16.70
13.00
9.40
ns
B36
A(0:31), BADDR(28:30), and D(0:31)
to GPL valid as requested by control
bit GxT4 in the corresponding word in
the UPM (MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
B37
UPWAIT valid to CLKOUT falling edge
12
(MIN = 0.00 x B1 + 6.00)
6.00
6.00
6.00
6.00
ns
B38
CLKOUT falling edge to UPWAIT valid
12
(MIN = 0.00 x B1 + 1.00)
1.00
1.00
1.00
1.00
ns
B39
AS valid to CLKOUT rising edge
13
(MIN = 0.00 x B1 + 7.00)
7.00
7.00
7.00
7.00
ns
B40
A(0:31), TSIZ(0:1), RD/WR, BURST,
valid to CLKOUT rising edge
(MIN = 0.00 x B1 + 7.00)
7.00
7.00
7.00
7.00
ns
B41
TS valid to CLKOUT rising edge (setup
time) (MIN = 0.00 x B1 + 7.00)
7.00
7.00
7.00
7.00
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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