參數(shù)資料
型號: MPC852T
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): 16/80頁
文件大?。?/td> 3080K
代理商: MPC852T
MPC852T Hardware Specifications, Rev. 3.1
16
Freescale Semiconductor
Bus Signal Timing
B24
A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 10, TRLX = 0 (MIN = 0.25 x B1
- 2.00)
5.60
4.30
3.00
1.80
ns
B24a A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 11 TRLX = 0 (MIN = 0.50 x B1 -
2.00)
13.20
10.50
8.00
5.60
ns
B25
CLKOUT rising edge to OE,
WE(0:3)/BS_B[0:3] asserted (MAX = 0.00 x B1
+ 9.00)
9.00
9.00
9.00
9.00
ns
B26
CLKOUT rising edge to OE negated (MAX =
0.00 x B1 + 9.00)
2.00
9.00
2.00
9.00
2.00
9.00
2.00
9.00
ns
B27
A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 10, TRLX = 1 (MIN = 1.25 x B1
- 2.00)
35.90
29.30
23.00
16.90
ns
B27a A(0:31) and BADDR(28:30) to CS asserted
GPCM ACS = 11, TRLX = 1 (MIN = 1.50 x B1 -
2.00)
43.50
35.50
28.00
20.70
ns
B28
CLKOUT rising edge to WE(0:3)/BS_B[0:3]
negated GPCM write access CSNT = 0 (MAX
= 0.00 x B1 + 9.00)
9.00
9.00
9.00
9.00
ns
B28a CLKOUT falling edge to WE(0:3)/BS_B[0:3]
negated GPCM write access TRLX = 0,1
CSNT = 1, EBDF = 0 (MAX = 0.25 x B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B28b CLKOUT falling edge to CS negated GPCM
write access TRLX = 0,1 CSNT = 1 ACS = 10
or ACS = 11, EBDF = 0 (MAX = 0.25 x B1 +
6.80)
14.30
13.00
11.80
10.50
ns
B28c CLKOUT falling edge to WE(0:3)/BS_B[0:3]
negated GPCM write access TRLX = 0,1
CSNT = 1 write access TRLX = 0,1 CSNT = 1,
EBDF = 1 (MAX = 0.375 x B1 + 6.6)
10.90
18.00
10.90
18.00
7.00
14.30
5.20
12.30
ns
B28d CLKOUT falling edge to CS negated GPCM
write access TRLX = 0,1 CSNT = 1, ACS = 10,
or ACS = 11, EBDF = 1 (MAX = 0.375 x B1 +
6.6)
18.00
18.00
14.30
12.30
ns
B29
WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access, CSNT =
0, EBDF = 0 (MIN = 0.25 x B1 - 2.00)
5.60
4.30
3.00
1.80
ns
B29a WE(0:3)/BS_B[0:3] negated to D(0:31),
DP(0:3) High-Z GPCM write access, TRLX = 0,
CSNT = 1, EBDF = 0 (MIN = 0.50 x B1 - 2.00)
13.20
10.50
8.00
5.60
ns
Table 9. Bus Operation Timings (continued)
Num
Characteristic
33 MHz
40 MHz
50 MHz
66 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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