mpc880 Freescale Semiconductor, Inc, mpc880 Datasheet - Page 19

• Manufacturer Part Number: mpc880
• Description: Mpc885 Powerquicc Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Freescale Semiconductor
B17a
B22a
B22b
B24a
B27a
Num
B22c
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
CLKOUT to TA, TEA, BI, BB, BG, BR valid (hold
time) (MIN = 0.00
CLKOUT to KR, RETRY, CR valid (hold time)
(MIN = 0.00
D(0:31) valid to CLKOUT rising edge (setup time)
(MIN = 0.00 × B1 + 6.00)
CLKOUT rising edge to D(0:31) valid (hold time)
(MIN = 0.00 × B1 + 1.00
D(0:31) valid to CLKOUT falling edge (setup
time)
CLKOUT falling edge to D(0:31) valid (hold time)
(MIN = 0.00 × B1 + 2.00)
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)
CLKOUT rising edge to OE, WE(0:3) asserted
(MAX = 0.00 × B1 + 9.00)
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 × B1 – 2.00)
A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 11, TRLX = 1
(MIN = 1.50 × B1 – 2.00)
6
(MIN = 0.00 × B1 + 4.00)
×
×
B1 + 2.00)
B1 + 9.00)
MPC885/MPC880 PowerQUICC™ Hardware Specifications, Rev. 4
Characteristic
×
B1 + 1.00
5
)
Table 9. Bus Operation Timings (continued)
3
)
4
4
6
10.90 18.00 10.90 16.00 5.20 12.30 4.69 10.93
13.20
35.90
43.50
1.00
2.00
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
1.00
2.00
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
2.00
2.00
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
—
—
—
—
—
—
—
—
—
—
13.60
16.75
2.00
2.00
6.00
2.00
4.00
2.00
2.00
1.13
4.25
2.00
Min
—
—
80 MHz
Bus Signal Timing
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
ns
ns
19