MPC875EC datasheet(20/84 Pages) FREESCALE

20 / 84 page

MPC875/MPC870 Hardware Specifications, Rev. 3.0

PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE

Freescale Semiconductor

Bus Signal Timing

B29f

WE(0:3/BS_B[0:3]) negated to D(0:31)

High-Z GPCM write access, TRLX = 0,

CSNT = 1, EBDF = 1

(MIN = 0.375

× B1 – 6.30)

5.00

—

3.00

—

0.00

—

0.00

—

B29g

CS negated to D(0:31) High-Z GPCM write

access, TRLX = 0, CSNT = 1 ACS = 10 or

ACS = 11, EBDF = 1

(MIN = 0.375

× B1 – 6.30)

5.00

—

3.00

—

0.00

—

0.00

—

B29h

WE(0:3)/BS_B[0:3] negated to D(0:31)

High-Z GPCM write access, TRLX = 1,

CSNT = 1, EBDF = 1

(MIN = 0.375

× B1 – 3.30)

38.40

—

31.10

—

17.50

—

13.85

—

B29i

CS negated to D(0:31) (0:3) High-Z GPCM

write access, TRLX = 1, CSNT = 1,

ACS = 10 or ACS = 11, EBDF = 1

(MIN = 0.375

× B1 – 3.30)

38.40

—

31.10

—

17.50

—

13.85

—

B30

CS, WE(0:3)/BS_B[0:3] negated to

A(0:31), BADDR(28:30) invalid GPCM

write access 7 (MIN = 0.25

× B1 – 2.00)

5.60

—

4.30

—

1.80

—

1.13

—

B30a

WE(0:3)/BS_B[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

× B1 – 2.00)

13.20

—

10.50

—

5.60

—

4.25

—

B30b

WE(0:3)/BS_B[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

× B1 – 2.00)

43.50

—

35.50

—

20.70

—

16.75

—

B30c

WE(0:3)/BS_B[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

× B1 – 3.00)

8.40

—

6.40

—

2.70

—

1.70

—

B30d

WE(0:3)/BS_B[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

—

17.83

—

14.19

—

Table 10. Bus Operation Timings (continued)

Num

Characteristic

33 MHz

40 MHz

66 MHz

80 MHz

Unit

Min

Max

Min

Max

Min

Max

Min

Max

MPC875EC Datasheet(PDF) 20 Page - Freescale Semiconductor, Inc

MPC875EC Datasheet(HTML) 20 Page - Freescale Semiconductor, Inc

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84

Datasheet Descarga

Enlace URL