參數(shù)資料
型號(hào): MPC880ZP133
廠商: MOTOROLA INC
元件分類(lèi): 微控制器/微處理器
英文描述: 32-BIT, 133 MHz, RISC PROCESSOR, PBGA357
封裝: 25 X 25 MM, 1.27 MM PITCH, PLASTIC, MS-034BAK-1, BGA-357
文件頁(yè)數(shù): 31/92頁(yè)
文件大?。?/td> 1499K
代理商: MPC880ZP133
37
MPC885/MPC880 Hardware Specifications
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Bus Signal Timing
Table 11 shows the PCMCIA timing for the MPC885/880.
Table 11. PCMCIA Timing
Num
Characteristic
33 MHz
40 MHz
66 MHz
80 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
P44
A(0:31), REG valid to PCMCIA
strobe asserted 1
(MIN = 0.75
× B1 – 2.00)
1 PSST = 1. Otherwise add PSST times cycle time.
PSHT = 0. Otherwise add PSHT times cycle time.
These synchronous timings define when the WAITx signals are detected in order to freeze (or relieve) the PCMCIA
current cycle. The WAITx assertion will be effective only if it is detected 2 cycles before the PSL timer expiration. See
Chapter 16, “PCMCIA Interface,” in the MPC885 PowerQUICC Family User’s Manual.
20.70
16.70
9.40
7.40
ns
P45
A(0:31), REG valid to ALE
negation1
(MIN = 1.00
× B1 – 2.00)
28.30
23.00
13.20
10.50
ns
P46
CLKOUT to REG valid
(MAX = 0.25
× B1 + 8.00)
7.60
15.60
6.30
14.30
3.80
11.80
3.13
11.13
ns
P47
CLKOUT to REG invalid
(MIN = 0.25 – B1 + 1.00)
8.60
7.30
4.80
4.13
ns
P48
CLKOUT to CE1, CE2 asserted
(MAX = 0.25
× B1 + 8.00)
7.60
15.60
6.30
14.30
3.80
11.80
3.13
11.13
ns
P49
CLKOUT to CE1, CE2 negated
(MAX = 0.25
× B1 + 8.00)
7.60
15.60
6.30
14.30
3.80
11.80
3.13
11.13
ns
P50
CLKOUT to PCOE, IORD,
PCWE, IOWR assert time
(MAX = 0.00
× B1 + 11.00)
11.00
11.00
11.00
11.00
ns
P51
CLKOUT to PCOE, IORD,
PCWE, IOWR negate time
(MAX = 0.00
× B1 + 11.00)
2.00
11.00
2.00
11.00
2.00
11.00
2.00
11.00
ns
P52
CLKOUT to ALE assert time
(MAX = 0.25
× B1 + 6.30)
7.60
13.80
6.30
12.50
3.80
10.00
3.13
9.40
ns
P53
CLKOUT to ALE negate time
(MAX = 0.25
× B1 + 8.00)
15.60
14.30
11.80
11.13
ns
P54
PCWE, IOWR negated to
D(0:31) invalid 1
(MIN = 0.25
× B1 – 2.00)
5.60
4.30
1.80
1.13
ns
P55
WAITA and WAITB valid to
CLKOUT rising edge1
(MIN = 0.00
× B1 + 8.00)
8.00
8.00
8.00
8.00
ns
P56
CLKOUT rising edge to WAITA
and WAITB invalid1
(MIN = 0.00
× B1 + 2.00)
2.00
2.00
2.00
2.00
ns
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