参数资料
型号: MPC866T
厂商: 飞思卡尔半导体(中国)有限公司
英文描述: Hardware Specifications
中文描述: 硬件规格
文件页数: 14/92页
文件大小: 1274K
代理商: MPC866T
MOTOROLA
MPC866/859 Hardware Specications
21
Bus Signal Timing
B30c WE(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, ACS == 11, EBDF = 1 (MIN = 0.375
x B1 – 3.00)
8.40
6.40
4.50
2.70
ns
B30d WE(0:3) negated to A(0:31),
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 11, EBDF = 1
38.67
31.38
24.50
17.83
ns
B31
CLKOUT falling edge to CS valid, as
requested by control bit CST4 in the
corresponding word in the UPM (MAX
= 0.00 X B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B31a CLKOUT falling edge to CS valid, as
requested by control bit CST1 in the
corresponding word in the UPM (MAX
= 0.25 x B1 + 6.80)
7.60
14.30
6.30
13.00
5.00
11.80
3.80
10.50
ns
B31b CLKOUT rising edge to CS valid, as
requested by control bit CST2 in the
corresponding word in the UPM (MAX
= 0.00 x B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
ns
B31c CLKOUT rising edge to CS valid, as
requested by control bit CST3 in the
corresponding word in the UPM (MAX
= 0.25 x B1 + 6.30)
7.60
13.80
6.30
12.50
5.00
11.30
3.80
10.00
ns
B31d CLKOUT falling edge to CS valid, as
requested by control bit CST1 in the
corresponding word in the UPM EBDF
= 1 (MAX = 0.375 x B1 + 6.6)
13.30
18.00
11.30
16.00
9.40
14.10
7.60
12.30
ns
B32
CLKOUT falling edge to BS valid, as
requested by control bit BST4 in the
corresponding word in the UPM (MAX
= 0.00 x B1 + 6.00)
1.50
6.00
1.50
6.00
1.50
6.00
1.50
6.00
ns
B32a CLKOUT falling edge to BS valid, as
requested by control bit BST1 in the
corresponding word in the UPM, 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
B32b CLKOUT rising edge to BS valid, as
requested by control bit BST2 in the
corresponding word in the UPM (MAX
= 0.00 x B1 + 8.00)
1.50
8.00
1.50
8.00
1.50
8.00
1.50
8.00
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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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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