參數(shù)資料
型號: 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): 20/88頁
文件大?。?/td> 483K
代理商: XPC862
20
MPC862/857T/857DSL Hardware Specifications
For More Information On This Product,
Go to: www.freescale.com
MOTOROLA
Bus Signal Timing
B29f WE(0:3) negated to D(0:31), DP(0:3)
High Z GPCM write access, TRLX = 0,
CSNT = 1, EBDF = 1 (MIN = 0.375 x
B1 - 6.30)
5.00
3.00
1.10
0.00
ns
B29g CS negated to D(0:31), DP(0:3)
High-Z GPCM write access, TRLX = 0,
CSNT = 1 ACS = 10 or ACS = 11,
EBDF = 1 (MIN = 0.375 x B1 - 6.30)
5.00
3.00
1.10
0.00
ns
B29h WE(0:3) negated to D(0:31), DP(0:3)
High Z GPCM write access, TRLX = 1,
CSNT = 1, EBDF = 1 (MIN = 0.375 x
B1 - 3.30)
38.40
31.10
24.20
17.50
ns
B29i CS negated to D(0:31), DP(0:3)
High-Z GPCM write access, TRLX = 1,
CSNT = 1, ACS = 10 or ACS = 11,
EBDF = 1 (MIN = 0.375 x B1 - 3.30)
38.40
31.10
24.20
17.50
ns
B30
CS, WE(0:3) negated to A(0:31),
BADDR(28:30) Invalid GPCM write
access
11
(MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
B30a WE(0:3) negated to A(0:31),
BADDR(28:30) Invalid GPCM, write
access, TRLX = 0, CSNT = 1, CS
negated to A(0:31) invalid GPCM write
access TRLX = 0, CSNT =1 ACS = 10,
or ACS == 11, EBDF = 0 (MIN = 0.50
x B1 - 2.00)
13.20
10.50
8.00
5.60
ns
B30b WE(0:3) negated to A(0:31) Invalid
GPCM BADDR(28:30) invalid GPCM
write access, TRLX = 1, CSNT = 1.
CS negated to A(0:31) Invalid GPCM
write access TRLX = 1, CSNT = 1,
ACS = 10, or ACS == 11 EBDF = 0
(MIN = 1.50 x B1 - 2.00)
43.50
35.50
28.00
20.70
ns
B30c WE(0:3) negated to A(0:31),
BADDR(28:30) invalid GPCM write
access, TRLX = 0, CSNT = 1.
CS negated to A(0:31) invalid GPCM
write access, TRLX = 0, CSNT = 1
ACS = 10, ACS == 11, EBDF = 1
(MIN = 0.375 x B1 - 3.00)
8.40
6.40
4.50
2.70
ns
B30d WE(0:3) negated to A(0:31),
BADDR(28:30) invalid GPCM write
access TRLX = 1, CSNT =1,
CS negated to A(0:31) invalid GPCM
write access TRLX = 1, CSNT = 1,
ACS = 10 or 11, EBDF = 1
38.67
31.38
24.50
17.83
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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