參數(shù)資料
型號: MPC853TVR66A
廠商: Freescale Semiconductor
文件頁數(shù): 29/88頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC 66MHZ 256PBGA
標準包裝: 60
系列: MPC8xx
處理器類型: 32-位 MPC8xx PowerQUICC
速度: 66MHz
電壓: 1.8V
安裝類型: 表面貼裝
封裝/外殼: 256-BGA
供應(yīng)商設(shè)備封裝: 256-PBGA(23x23)
包裝: 托盤
MPC853T Hardware Specification, Rev. 1
Freescale Semiconductor
35
Bus Signal Timing
Table 11 shows the PCMCIA timing for the MPC853T.
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
× 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 will be effective only if it is detected two cycles before the PSL timer expiration.
See the Chapter 16, “PCMCIA Interface,” in the
MPC866 PowerQUICC Family User’s Manual.
20.70
16.70
13.00
9.40
ns
J83
A(0:31), REG valid to ALE negation1
(MIN = 1.00
× B1 – 2.00)
28.30
23.00
18.00
13.20
ns
J84
CLKOUT to REG valid
(MAX = 0.25
× 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
× B1 + 1.00)
8.60
7.30
6.00
4.80
ns
J86
CLKOUT to CE1, CE2 asserted
(MAX = 0.25
× 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
× 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
× B1 + 11.00)
11.00
11.00
11.00
11.00
ns
J89
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
J90
CLKOUT to ALE assert time
(MAX = 0.25
× 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
× B1 + 8.00)
15.60
14.30
13.00
11.80
ns
J92
PCWE, IOWR negated to D(0:31)
invalid1 (MIN = 0.25
× B1–2.00)
5.60
4.30
3.00
1.80
ns
J93
WAITA and WAITB valid to CLKOUT
rising edge1 (MIN = 0.00
× B1 + 8.00)
8.00
8.00
8.00
8.00
ns
J94
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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