MPC870 FREESCALE [Freescale Semiconductor, Inc], MPC870 Datasheet - Page 18

• Manufacturer Part Number: MPC870
• Description: Hardware Specifications
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Bus Signal Timing
18
B22a
B22b
B22c
B24a
B27a
Num
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
D(0:31) valid to CLKOUT rising edge
(setup time)
CLKOUT rising edge to D(0:31) valid (hold
time)
D(0:31) valid to CLKOUT falling edge
(setup time)
CLKOUT falling edge to D(0:31) valid
(hold time)
CLKOUT rising edge to CS asserted
GPCM ACS = 00 (MAX = 0.25
CLKOUT falling edge to CS asserted
GPCM ACS = 10, TRLX = 0
(MAX = 0.00
CLKOUT falling edge to CS asserted
GPCM ACS = 11, TRLX = 0, EBDF = 0
(MAX = 0.25
CLKOUT falling edge to CS asserted
GPCM ACS = 11, TRLX = 0, EBDF = 1
(MAX = 0.375
CLKOUT rising edge to CS negated
GPCM read access, GPCM write access
ACS = 00, TRLX = 0 & CSNT = 0
(MAX = 0.00
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 10, TRLX = 0
(MIN = 0.25
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 11 TRLX = 0
(MIN = 0.50
CLKOUT rising edge to OE,
WE(0:3)/BS_B[0:3] asserted
(MAX = 0.00
CLKOUT rising edge to OE negated
(MAX = 0.00
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 10, TRLX = 1
(MIN = 1.25
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 11, TRLX = 1
(MIN = 1.50
4
(MIN = 0.00
6
×
×
×
×
(MIN = 0.00
4
6
×
×
×
×
×
Characteristic
(MIN = 0.00
×
B1 – 2.00)
B1 – 2.00)
B1 – 2.00)
B1 – 2.00)
(MIN = 0.00
B1 + 8.00)
B1 + 6.3)
B1 + 8.00)
B1 + 9.00)
B1 + 9.00)
B1 + 6.6)
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
×
MPC875/MPC870 Hardware Specifications, Rev. 3.0
B1 + 1.00
Table 10. Bus Operation Timings (continued)
×
×
×
B1 + 2.00)
B1 + 4.00)
B1 + 6.00)
×
5
B1 + 6.3)
)
10.90 18.00 10.90 16.00 5.20 12.30 4.69 10.93
13.20
35.90
43.50
6.00
1.00
4.00
2.00
7.60 13.80 6.30 12.50 3.80 10.00 3.13
7.60 13.80 6.30 12.50 3.80 10.00 3.13
2.00
5.60
2.00
Min
—
—
33 MHz
Max
8.00
8.00
9.00
9.00
—
—
—
—
—
—
—
—
10.50
29.30
35.50
6.00
1.00
4.00
2.00
2.00
4.30
2.00
Min
—
40 MHz
Max
8.00
8.00
9.00
9.00
—
—
—
—
—
—
—
—
16.90
20.70
6.00
2.00
4.00
2.00
2.00
1.80
5.60
2.00
Min
—
66 MHz
Max
8.00
8.00
9.00
9.00
—
—
—
—
—
—
—
—
Freescale Semiconductor
13.60
16.75
6.00
2.00
4.00
2.00
2.00
1.13
4.25
2.00
Min
—
—
80 MHz
Max
9.43
8.00
9.43
8.00
9.00
9.00
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns