參數(shù)資料
型號(hào): MPC855
廠(chǎng)商: Motorola, Inc.
英文描述: Family Hardware Specifications
中文描述: 家庭硬件規(guī)格
文件頁(yè)數(shù): 49/76頁(yè)
文件大?。?/td> 857K
代理商: MPC855
MOTOROLA
MPC860 Family Hardware Specifications
49
Serial Interface AC Electrical Specifications
Figure 11-48. CPM General-Purpose Timers Timing Diagram
11.5 Serial Interface AC Electrical Specifications
Table 11-17 provides the serial interface timings as shown in Figure 11-49 through
Figure 11-53.
Table 11-17. SI Timing
Num
Characteristic
All Frequencies
Unit
Min
Max
70
L1RCLK, L1TCLK frequency (DSC = 0)
1,
2
SYNCCLK/2.5
MHz
71
L1RCLK, L1TCLK width low (DSC = 0)
2
P + 10
ns
71a
L1RCLK, L1TCLK width high (DSC = 0)
3
P + 10
ns
72
L1TXD, L1ST(1–4), L1RQ, L1CLKO rise/fall time
15.00
ns
73
L1RSYNC, L1TSYNC valid to L1CLK edge (SYNC setup time)
20.00
ns
74
L1CLK edge to L1RSYNC, L1TSYNC, invalid (SYNC hold time)
35.00
ns
75
L1RSYNC, L1TSYNC rise/fall time
15.00
ns
76
L1RXD valid to L1CLK edge (L1RXD setup time)
17.00
ns
77
L1CLK edge to L1RXD invalid (L1RXD hold time)
13.00
ns
78
L1CLK edge to L1ST(1–4) valid
4
10.00
45.00
ns
78A
L1SYNC valid to L1ST(1–4) valid
10.00
45.00
ns
79
L1CLK edge to L1ST(1–4) invalid
10.00
45.00
ns
80
L1CLK edge to L1TXD valid
10.00
55.00
ns
80A
L1TSYNC valid to L1TXD valid
4
10.00
55.00
ns
81
L1CLK edge to L1TXD high impedance
0.00
42.00
ns
82
L1RCLK, L1TCLK frequency (DSC =1)
16.00 or
SYNCCLK/2
MHz
CLKO
TIN/TGATE
(Input)
TOUT
(Output)
64
65
61
62
63
61
60
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