參數(shù)資料
型號: KMPC870CVR66
廠商: Freescale Semiconductor
文件頁數(shù): 14/84頁
文件大?。?/td> 0K
描述: IC MPU POWERQUICC 66MHZ 256PBGA
標準包裝: 2
系列: MPC8xx
處理器類型: 32-位 MPC8xx PowerQUICC
速度: 66MHz
電壓: 3.3V
安裝類型: 表面貼裝
封裝/外殼: 256-BGA
供應商設備封裝: 256-PBGA(23x23)
包裝: 托盤
MPC875/MPC870 PowerQUICC Hardware Specifications, Rev. 4
Freescale Semiconductor
21
Bus Signal Timing
B29d
WE(0:3)/BS_B[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
B29f
WE(0:3/BS_B[0:3]) negated to D(0:31) High-Z
GPCM write access, TRLX = 0, CSNT = 1,
EBDF = 1 (MIN = 0.375
× B1–6.30)7
5.00
3.00
0.00
0.00
ns
B29g
CS negated to D(0:31) High-Z GPCM write
access, TRLX = 0, CSNT = 1 ACS = 10 or
ACS = 11, EBDF = 1
(MIN = 0.375
× B1 – 6.30)7
5.00
3.00
0.00
0.00
ns
B29h
WE(0:3)/BS_B[0:3] negated to D(0:31) High-Z
GPCM write access, TRLX = 1, CSNT = 1,
EBDF = 1 (MIN = 0.375
× B1–3.30)
38.40
31.10
17.50
13.85
ns
B29i
CS negated to D(0:31) (0:3) High-Z GPCM
write access, TRLX = 1, CSNT = 1, ACS = 10
or ACS = 11, EBDF = 1
(MIN = 0.375
× B1 – 3.30)
38.40
31.10
17.50
13.85
ns
B30
CS, WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) invalid GPCM write access8
(MIN = 0.25
× B1 – 2.00)
5.60
4.30
1.80
1.13
ns
B30a
WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) invalid GPCM, write access,
TRLX = 0, CSNT = 1, CS negated to A(0:31),
invalid 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
B30b
WE(0:3)/BS_B[0:3] negated to A(0:31), invalid
GPCM BADDR(28:30), invalid GPCM write
access, TRLX = 1, CSNT = 1. CS negated to
A(0:31), invalid 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
B30c
WE(0:3)/BS_B[0:3] negated to A(0:31),
BADDR(28:30) invalid GPCM write access,
TRLX = 0, CSNT = 1. CS negated to A(0:31)
invalid GPCM write access, TRLX = 0,
CSNT = 1 ACS = 10 or ACS == 11, EBDF = 1
(MIN = 0.375
× B1 – 3.00)
8.40
6.40
2.70
1.70
ns
Table 10. 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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