參數(shù)資料
型號: MPC852TZT100
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: Hardware Specifications
中文描述: 硬件規(guī)格
文件頁數(shù): 34/80頁
文件大?。?/td> 3080K
代理商: MPC852TZT100
MPC852T Hardware Specifications, Rev. 3.1
34
Freescale Semiconductor
Bus Signal Timing
Table 11
shows the PCMCIA timing for the MPC852T.
Table 11. PCMCIA Timing
Num
Characteristic
33 MHz
40 MHz
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
J82
A(0:31), REG valid to PCMCIA Strobe
asserted.
1
(MIN = 0.75 x 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 WAITA signals are detected in order to freeze (or relieve) the PCMCIA current
cycle. The WAITA assertion is effective only if it is detected 2 cycles before the PSL timer expiration. See PCMCIA Interface
in the
MPC852T PowerQUICC User s Manual
.
20.70
16.70
13.00
9.40
ns
J83
A(0:31), REG valid to ALE negation.
1
(MIN =
1.00 x B1 - 2.00)
28.30
23.00
18.00
13.20
ns
J84
CLKOUT to REG valid (MAX = 0.25 x B1 +
8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J85
CLKOUT to REG Invalid. (MIN = 0.25 x B1 +
1.00)
8.60
7.30
6.00
4.80
ns
J86
CLKOUT to CE1, CE2 asserted. (MAX =
0.25 x B1 + 8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J87
CLKOUT to CE1, CE2 negated. (MAX =
0.25 x B1 + 8.00)
7.60
15.60
6.30
14.30
5.00
13.00
3.80
11.80
ns
J88
CLKOUT to PCOE, IORD, PCWE, IOWR
assert time. (MAX = 0.00 x B1 + 11.00)
11.00
11.00
11.00
11.00
ns
J89
CLKOUT to PCOE, IORD, PCWE, IOWR
negate time. (MAX = 0.00 x B1 + 11.00)
2.00
11.00
2.00
11.00
2.00
11.00
2.00
11.00
ns
J90
CLKOUT to ALE assert time (MAX = 0.25 x
B1 + 6.30)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
J91
CLKOUT to ALE negate time (MAX = 0.25 x
B1 + 8.00)
15.60
14.30
13.00
11.80
ns
J92
PCWE, IOWR negated to D(0:31) invalid.
1
(MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
J93
WAITA and WAITB valid to CLKOUT rising
edge.
1
(MIN = 0.00 x B1 + 8.00)
8.00
8.00
8.00
8.00
ns
J94
CLKOUT rising edge to WAITA and WAITB
invalid.
1
(MIN = 0.00 x B1 + 2.00)
2.00
2.00
2.00
2.00
ns
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