MPC866 datasheet(21/92 Pages) FREESCALE

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MOTOROLA

MPC866/859 Hardware Speciﬁcations

Bus Signal Timing

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

—

B31

CLKOUT falling edge to CS valid, as

requested by control bit CST4 in the

corresponding word in the UPM (MAX

= 0.00 X B1 + 6.00)

1.50

6.00

1.50

6.00

1.50

6.00

1.50

6.00

B31a CLKOUT falling edge to CS valid, as

requested by control bit CST1 in the

corresponding word in the UPM (MAX

= 0.25 x B1 + 6.80)

7.60

14.30

6.30

13.00

5.00

11.80

3.80

10.50

B31b CLKOUT rising edge to CS valid, as

requested by control bit CST2 in the

corresponding word in the UPM (MAX

= 0.00 x B1 + 8.00)

1.50

8.00

1.50

8.00

1.50

8.00

1.50

8.00

B31c CLKOUT rising edge to CS valid, as

requested by control bit CST3 in the

corresponding word in the UPM (MAX

= 0.25 x B1 + 6.30)

7.60

13.80

6.30

12.50

5.00

11.30

3.80

10.00

B31d CLKOUT falling edge to CS valid, as

requested by control bit CST1 in the

corresponding word in the UPM EBDF

= 1 (MAX = 0.375 x B1 + 6.6)

13.30

18.00

11.30

16.00

9.40

14.10

7.60

12.30

B32

CLKOUT falling edge to BS valid, as

requested by control bit BST4 in the

corresponding word in the UPM (MAX

= 0.00 x B1 + 6.00)

1.50

6.00

1.50

6.00

1.50

6.00

1.50

6.00

B32a CLKOUT falling edge to BS valid, as

requested by control bit BST1 in the

corresponding word in the UPM, EBDF

= 0 (MAX = 0.25 x B1 + 6.80)

7.60

14.30

6.30

13.00

5.00

11.80

3.80

10.50

B32b CLKOUT rising edge to BS valid, as

requested by control bit BST2 in the

corresponding word in the UPM (MAX

= 0.00 x B1 + 8.00)

1.50

8.00

1.50

8.00

1.50

8.00

1.50

8.00

Table 9. 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.

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