MPC862 datasheet(20/88 Pages) MOTOROLA

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MPC862/857T/857DSL Hardware Speciﬁcations

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

—

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

—

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

—

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

—

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

—

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

—

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

—

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

—

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

—

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

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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