MPC857DSL Motorola, MPC857DSL Datasheet - Page 20
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MPC857DSL
Manufacturer Part Number
MPC857DSL
Description
(MPC857 / MPC862) Hardware Specifications
Manufacturer
Motorola
Datasheet
1.MPC857DSL.pdf
(88 pages)
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Bus Signal Timing
Bus Signal Timing
20
B29g CS negated to D(0:31), DP(0:3)
B29h WE(0:3) negated to D(0:31), DP(0:3)
B30a WE(0:3) negated to A(0:31),
B30b WE(0:3) negated to A(0:31) Invalid
B30d WE(0:3) negated to A(0:31),
Num
B30c WE(0:3) negated to A(0:31),
B29f WE(0:3) negated to D(0:31), DP(0:3)
B29i CS negated to D(0:31), DP(0:3)
B30 CS, WE(0:3) negated to A(0:31),
High Z GPCM write access, TRLX = 0,
CSNT = 1, EBDF = 1 (MIN = 0.375 x
B1 - 6.30)
High-Z GPCM write access, TRLX = 0,
CSNT = 1 ACS = 10 or ACS = 11,
EBDF = 1 (MIN = 0.375 x B1 - 6.30)
High Z GPCM write access, TRLX = 1,
CSNT = 1, EBDF = 1 (MIN = 0.375 x
B1 - 3.30)
High-Z GPCM write access, TRLX = 1,
CSNT = 1, ACS = 10 or ACS = 11,
EBDF = 1 (MIN = 0.375 x B1 - 3.30)
BADDR(28:30) Invalid GPCM write
access
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)
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)
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)
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
11
(MIN = 0.25 x B1 - 2.00)
Characteristic
MPC862/857T/857DSL Hardware Specifications
Freescale Semiconductor, Inc.
Table 7. Bus Operation Timings (continued)
For More Information On This Product,
Go to: www.freescale.com
38.40
38.40
13.20
43.50
38.67
5.00
5.00
5.60
8.40
Min
33 MHz
Max
—
—
—
—
—
—
—
—
—
31.10
31.10
10.50
35.50
31.38
3.00
3.00
4.30
6.40
Min
40 MHz
Max
—
—
—
—
—
—
—
—
—
24.20
24.20
28.00
24.50
1.10
1.10
3.00
8.00
4.50
Min
50 MHz
Max
—
—
—
—
—
—
—
—
—
17.50
17.50
20.70
17.83
0.00
0.00
1.80
5.60
2.70
Min
66 MHz
MOTOROLA
Max
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns