参数资料
型号: XPC850VR66BU
厂商: Freescale Semiconductor
文件页数: 5/72页
文件大小: 0K
描述: IC MPU POWERQUICC 66MHZ 256-PBGA
标准包装: 60
系列: MPC8xx
处理器类型: 32-位 MPC8xx PowerQUICC
速度: 66MHz
电压: 3.3V
安装类型: 表面贴装
封装/外壳: 256-LBGA
供应商设备封装: 256-PBGA(23x23)
包装: 托盘
MPC850 PowerQUICC Integrated Communications Processor Hardware Specifications, Rev. 2
Freescale Semiconductor
13
Bus Signal Timing
B22
CLKOUT rising edge to CS
asserted GPCM ACS = 00
5.00
11.75
7.58
14.33
6.25
13.00
0.250
50.00
ns
B22a
CLKOUT falling edge to CS
asserted GPCM ACS = 10,
TRLX = 0,1
8.00
8.00
8.00
50.00
ns
B22b
CLKOUT falling edge to CS
asserted GPCM ACS = 11,
TRLX = 0, EBDF = 0
5.00
11.75
7.58
14.33
6.25
13.00
0.250
50.00
ns
B22c
CLKOUT falling edge to CS
asserted GPCM ACS = 11,
TRLX = 0, EBDF = 1
7.00
14.00
11.00
18.00
9.00
16.00
0.375
50.00
ns
B23
CLKOUT rising edge to CS
negated GPCM read access,
GPCM write access ACS = 00,
TRLX = 0 & CSNT = 0
2.00
8.00
2.00
8.00
2.00
8.00
50.00
ns
B24
A[6–31] to CS asserted GPCM
ACS = 10, TRLX = 0.
3.00
6.00
4.00
0.250
50.00
ns
B24a
A[6–31] to CS asserted GPCM
ACS = 11, TRLX = 0
8.00
13.00
11.00
0.500
50.00
ns
B25
CLKOUT rising edge to OE,
WE[0–3] asserted
9.00
9.00
9.00
50.00
ns
B26
CLKOUT rising edge to OE
negated
2.00
9.00
2.00
9.00
2.00
9.00
50.00
ns
B27
A[6–31] to CS asserted GPCM
ACS = 10, TRLX = 1
23.00
36.00
29.00
1.250
50.00
ns
B27a
A[6–31] to CS asserted GPCM
ACS = 11, TRLX = 1
28.00
43.00
36.00
1.500
50.00
ns
B28
CLKOUT rising edge to
WE[0–3] negated GPCM write
access CSNT = 0
9.00
9.00
9.00
50.00
ns
B28a
CLKOUT falling edge to
WE[0–3] negated GPCM write
access TRLX = 0,1 CSNT = 1,
EBDF = 0
5.00
12.00
8.00
14.00
6.00
13.00
0.250
50.00
ns
B28b
CLKOUT falling edge to CS
negated GPCM write access
TRLX = 0,1 CSNT = 1, ACS =
10 or ACS = 11, EBDF = 0
12.00
14.00
13.00
0.250
50.00
ns
Table 6. Bus Operation Timing 1 (continued)
Num
Characteristic
50 MHz
66 MHz
80 MHz
FFACT
Cap Load
(default
50 pF)
Unit
Min
Max
Min
Max
Min
Max
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