MPC885 Datasheet

  • MPC885

  • Freescale Semiconductor, Inc [Hardware Specifications]

  • 1498.97KB

  • FREESCALE

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Bus Signal Timing
Table 9. Bus Operation Timings (continued)
33 MHz
Num
Characteristic
Min
B33a
CLKOUT rising edge to GPL valid, as
requested by control bit GxT3 in the
corresponding word in the UPM
(MAX = 0.25
B1 + 6.80)
A(0:31), BADDR(28:30), and D(0:31) to
CS valid, as requested by control bit CST4
in the corresponding word in the UPM
(MIN = 0.25
B1 鈥?2.00)
Max
Min
Max
Min
Max
Min
Max
ns
40 MHz
66 MHz
80 MHz
Unit
7.60 14.30 6.30 13.00 3.80 10.50 3.13 10.00
B34
5.60
鈥?/div>
4.30
鈥?/div>
1.80
鈥?/div>
1.13
鈥?/div>
ns
B34a
13.20
A(0:31), BADDR(28:30), and D(0:31) to
CS valid, as requested by control bit CST1
in the corresponding word in the UPM
(MIN = 0.50
B1 鈥?2.00)
A(0:31), BADDR(28:30), and D(0:31) to
CS valid, as requested by CST2 in the
corresponding word in UPM
(MIN = 0.75
B1 鈥?2.00)
A(0:31), BADDR(28:30) to CS valid, as
requested by control bit BST4 in the
corresponding word in the UPM
(MIN = 0.25
B1 鈥?2.00)
A(0:31), BADDR(28:30), and D(0:31) to
BS valid, as requested by BST1 in the
corresponding word in the UPM
(MIN = 0.50
B1 鈥?2.00)
20.70
鈥?/div>
10.50
鈥?/div>
5.60
鈥?/div>
4.25
鈥?/div>
ns
B34b
鈥?/div>
16.70
鈥?/div>
9.40
鈥?/div>
6.80
鈥?/div>
ns
B35
5.60
鈥?/div>
4.30
鈥?/div>
1.80
鈥?/div>
1.13
鈥?/div>
ns
B35a
13.20
鈥?/div>
10.50
鈥?/div>
5.60
鈥?/div>
4.25
鈥?/div>
ns
B35b
20.70
A(0:31), BADDR(28:30), and D(0:31) to
BS valid, as requested by control bit BST2
in the corresponding word in the UPM
(MIN = 0.75
B1 鈥?2.00)
A(0:31), BADDR(28:30), and D(0:31) to
GPL valid, as requested by control bit
GxT4 in the corresponding word in the
UPM (MIN = 0.25
B1 鈥?2.00)
UPWAIT valid to CLKOUT falling edge
8
(MIN = 0.00
B1 + 6.00)
CLKOUT falling edge to UPWAIT valid
8
(MIN = 0.00
B1 + 1.00)
AS valid to CLKOUT rising edge
9
(MIN = 0.00
B1 + 7.00)
A(0:31), TSIZ(0:1), RD/WR, BURST, valid
to CLKOUT rising edge
(MIN = 0.00
B1 + 7.00)
TS valid to CLKOUT rising edge (setup
time) (MIN = 0.00
B1 + 7.00)
5.60
鈥?/div>
16.70
鈥?/div>
9.40
鈥?/div>
7.40
鈥?/div>
ns
B36
鈥?/div>
4.30
鈥?/div>
1.80
鈥?/div>
1.13
鈥?/div>
ns
B37
B38
B39
B40
6.00
1.00
7.00
7.00
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
6.00
1.00
7.00
7.00
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
6.00
1.00
7.00
7.00
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
6.00
1.00
7.00
7.00
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
ns
ns
ns
ns
B41
7.00
鈥?/div>
7.00
鈥?/div>
7.00
鈥?/div>
7.00
鈥?/div>
ns
MPC885/MPC880 Hardware Specifications, Rev. 3
22
Freescale Semiconductor

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