MPC857DSL Motorola, MPC857DSL Datasheet - Page 19
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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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MOTOROLA
B28a CLKOUT falling edge to WE(0:3)
B28b CLKOUT falling edge to CS negated
B28d CLKOUT falling edge to CS negated
B29a WE(0:3) negated to D(0:31), DP(0:3)
B29b CS negated to D(0:31), DP(0:3), High
B29d WE(0:3) negated to D(0:31), DP(0:3)
B29e CS negated to D(0:31), DP(0:3)
Num
B28c CLKOUT falling edge to WE(0:3)
B29c CS negated to D(0:31), DP(0:3)
B28 CLKOUT rising edge to WE(0:3)
B29 WE(0:3) negated to D(0:31), DP(0:3)
negated GPCM write access CSNT
= 0 (MAX = 0.00 x B1 + 9.00)
negated GPCM write access
TRLX = 0, 1, CSNT = 1, EBDF = 0
(MAX = 0.25 x B1 + 6.80)
GPCM write access TRLX = 0,1,
CSNT = 1 ACS = 10 or ACS = 11,
EBDF = 0 (MAX = 0.25 x B1 + 6.80)
negated GPCM write access
TRLX = 0, CSNT = 1 write access
TRLX = 0,1, CSNT = 1, EBDF = 1
(MAX = 0.375 x B1 + 6.6)
GPCM write access TRLX = 0,1,
CSNT = 1, ACS = 10, or ACS = 11,
EBDF = 1 (MAX = 0.375 x B1 + 6.6)
High-Z GPCM write access, CSNT
= 0, EBDF = 0 (MIN = 0.25 x B1 - 2.00)
High-Z GPCM write access, TRLX = 0,
CSNT = 1, EBDF = 0 (MIN = 0.50 x B1
- 2.00)
Z GPCM write access, ACS = 00,
TRLX = 0,1 & CSNT = 0 (MIN = 0.25 x
B1 - 2.00)
High-Z GPCM write access, TRLX = 0,
CSNT = 1, ACS = 10, or ACS = 11
EBDF = 0 (MIN = 0.50 x B1 - 2.00)
High-Z GPCM write access, TRLX = 1,
CSNT = 1, EBDF = 0 (MIN = 1.50 x B1
- 2.00)
High-Z GPCM write access, TRLX = 1,
CSNT = 1, ACS = 10, or ACS = 11
EBDF = 0 (MIN = 1.50 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
10.90
13.20
13.20
43.50
43.50
7.60
5.60
5.60
Min
—
—
—
33 MHz
14.30
14.30
18.00
18.00
Max
9.00
—
—
—
—
—
—
10.90
10.50
10.50
35.50
35.50
6.30
4.30
4.30
Min
—
—
—
40 MHz
13.00
13.00
18.00
18.00
Max
9.00
—
—
—
—
—
—
28.00
28.00
5.00
7.00
3.00
8.00
3.00
8.00
Min
—
—
—
50 MHz
11.80
11.80
14.30
14.30
Max
9.00
—
—
—
—
—
—
Bus Signal Timing
20.70
20.70
3.80
5.20
1.80
5.60
1.80
5.60
Min
—
—
—
66 MHz
10.50
10.50
12.30
12.30
Max
9.00
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
19