參數(shù)資料
型號: KMPC880
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): 19/92頁
文件大小: 1499K
代理商: KMPC880
MPC885/MPC880 Hardware Specifications, Rev. 3
19
Freescale Semiconductor
Bus Signal Timing
B27
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 10, TRLX = 1
(MIN = 1.25
×
B1 – 2.00)
35.90
29.30
16.90
13.60
ns
B27a
A(0:31) and BADDR(28:30) to CS
asserted GPCM ACS = 11, TRLX = 1
(MIN = 1.50
×
B1 – 2.00)
43.50
35.50
20.70
16.75
ns
B28
CLKOUT rising edge to WE(0:3) negated
GPCM write access CSNT = 0
(MAX = 0.00
×
B1 + 9.00)
9.00
9.00
9.00
9.00
ns
B28a
CLKOUT falling edge to WE(0:3) negated
GPCM write access TRLX = 0, CSNT = 1,
EBDF = 0 (MAX = 0.25
×
B1 + 6.80)
7.60
14.30
6.30
13.00
3.80
10.50
3.13
9.93
ns
B28b
CLKOUT falling edge to CS negated
GPCM write access TRLX = 0, CSNT = 1
ACS = 10 or ACS = 11, EBDF = 0
(MAX = 0.25
×
B1 + 6.80)
14.30
13.00
10.50
9.93
ns
B28c
CLKOUT falling edge to WE(0:3) negated
GPCM write access TRLX = 0, CSNT = 1
write access TRLX = 0, CSNT = 1,
EBDF = 1 (MAX = 0.375
×
B1 + 6.6)
10.90 18.00 10.90 18.00
5.20
12.30
4.69
11.29
ns
B28d
CLKOUT falling edge to CS negated
GPCM write access TRLX = 0, CSNT = 1,
ACS = 10, or ACS = 11, EBDF = 1
(MAX = 0.375
×
B1 + 6.6)
18.00
18.00
12.30
11.30
ns
B29
WE(0:3) negated to D(0:31) High-Z GPCM
write access, CSNT = 0, EBDF = 0
(MIN = 0.25
×
B1 – 2.00)
5.60
4.30
1.80
1.13
ns
B29a
WE(0:3) negated to D(0:31) High-Z GPCM
write access, TRLX = 0, CSNT = 1,
EBDF = 0 (MIN = 0.50
×
B1 – 2.00)
13.20
10.50
5.60
4.25
ns
B29b
CS negated to D(0:31) High-Z GPCM write
access, ACS = 00, TRLX = 0 & CSNT = 0
(MIN = 0.25
×
B1 – 2.00)
5.60
4.30
1.80
1.13
ns
B29c
CS negated to D(0:31) High-Z GPCM write
access, TRLX = 0, CSNT = 1, ACS = 10,
or ACS = 11 EBDF = 0
(MIN = 0.50
×
B1 – 2.00)
13.20
10.50
5.60
4.25
ns
B29d
WE(0:3) negated to D(0:31) High-Z GPCM
write access, TRLX = 1, CSNT = 1,
EBDF = 0 (MIN = 1.50
×
B1 – 2.00)
43.50
35.50
20.70
16.75
ns
B29e
CS negated to D(0:31) High-Z GPCM write
access, TRLX = 1, CSNT = 1, ACS = 10,
or ACS = 11 EBDF = 0
(MIN = 1.50
×
B1 – 2.00)
43.50
35.50
20.70
16.75
ns
Table 9. Bus Operation Timings (continued)
Num
Characteristic
33 MHz
40 MHz
66 MHz
80 MHz
Unit
Min
Max
Min
Max
Min
Max
Min
Max
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