MPC875 Freescale Semiconductor, Inc, MPC875 Datasheet - Page 19

• Manufacturer Part Number: MPC875
• Description: Mpc875 Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
B16a
B16b
B17a
B22a
B22b
B24a
Num
B22c
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
CLKOUT to TEA High-Z
(MIN = 0.00 × B1 + 2.50)
TA, BI valid to CLKOUT (setup time)
(MIN = 0.00 × B1 + 6.00)
TEA, KR, RETRY, CR valid to CLKOUT (setup
time) (MIN = 0.00 × B1 + 4.5)
BB, BG, BR, valid to CLKOUT (setup time)
(4MIN = 0.00 × B1 + 0.00)
CLKOUT to TA, TEA, BI, BB, BG, BR valid
(hold time) (MIN = 0.00 × B1 + 1.00
CLKOUT to KR, RETRY, CR valid (hold time)
(MIN = 0.00 × B1 + 2.00)
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 × B1 + 6.3)
CLKOUT falling edge to CS asserted GPCM
ACS = 10, TRLX = 0 (MAX = 0.00 × B1 + 8.00)
CLKOUT falling edge to CS asserted GPCM
ACS = 11, TRLX = 0, EBDF = 0
(MAX = 0.25 × B1 + 6.3)
CLKOUT falling edge to CS asserted GPCM
ACS = 11, TRLX = 0, EBDF = 1
(MAX = 0.375 × B1 + 6.6)
CLKOUT rising edge to CS negated GPCM
read access, GPCM write access ACS = 00,
TRLX = 0 and CSNT = 0
(MAX = 0.00 × B1 + 8.00)
A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 10, TRLX = 0
(MIN = 0.25 × B1 – 2.00)
A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 11, TRLX = 0
(MIN = 0.50 × B1 – 2.00)
4
4
6
6
(MIN = 0.00 × B1 + 1.00
(MIN = 0.00 × B1 + 2.00)
(MIN = 0.00 × B1 + 6.00)
(MIN = 0.00 × B1 + 4.00)
Characteristic
MPC875/MPC870 PowerQUICC™ Hardware Specifications, Rev. 4
Table 10. Bus Operation Timings (continued)
5
)
3
)
2
10.90 18.00 10.90 16.00
13.20
2.50
6.00
4.50
4.00
1.00
2.00
6.00
1.00
4.00
2.00
7.60
7.60
2.00
5.60
Min
—
33 MHz
15.00
13.80
13.80
Max
8.00
8.00
—
—
—
—
—
—
—
—
—
—
—
10.50
2.50
6.00
4.50
4.00
1.00
2.00
6.00
1.00
4.00
2.00
6.30
6.30
2.00
4.30
Min
—
40 MHz
15.00
12.50
12.50
Max
8.00
8.00
—
—
—
—
—
—
—
—
—
—
—
2.50
6.00
4.50
4.00
2.00
2.00
6.00
2.00
4.00
2.00
3.80
3.80
5.20
2.00
1.80
5.60
Min
—
66 MHz
15.00
10.00
10.00
12.30
Max
8.00
8.00
—
—
—
—
—
—
—
—
—
—
—
2.50
4.50
4.00
2.00
2.00
6.00
2.00
4.00
2.00
3.13
3.13
4.69
2.00
1.13
4.25
Min
—
6
80 MHz
Bus Signal Timing
15.00
10.93
Max
9.43
8.00
9.43
8.00
—
—
—
—
—
—
—
—
—
—
—
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
19