MPC857DSL Motorola, MPC857DSL Datasheet - Page 19

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MPC857DSL

Manufacturer Part Number
MPC857DSL
Description
(MPC857 / MPC862) Hardware Specifications
Manufacturer
Motorola
Datasheet

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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

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