参数资料
型号: M68LC302CPU20VCT
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 4 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQFP100
封装: 14 X 14 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASITC, LQFP-100
文件页数: 9/128页
文件大小: 641K
代理商: M68LC302CPU20VCT
MC68EN302 Electrical Characteristics
MOTOROLA
MC68EN302 REFERENCE MANUAL
8-7
8.5 JTAG INTERFACE TIMING
The TCK, TRST, TMS, TDI, TDO are new signals added to the MC68EN302 that do not exist
on the MC68302.
Figure 8-7. Test Clock Input Timing Diagram
Figure 8-8. TRST Timing Diagram
Num
Characteristic
Min
Max
Unit
TCK Frequency of Operation
0
10
MHz
1
TCK Cycle Time in Crystal Mode
100
ns
2
TCK Clock Pulse Width Measured at 1.5 V
40
ns
3
TCK Rise and Fall Times
0
3
ns
6
Boundary Scan Input Data Setup Time
10
ns
7
Boundary Scan Input Data Hold Time
18
ns
8
TCK Low to Output Data Valid
0
30
ns
9
TCK Low to Output High Impedance
0
40
ns
10
TMS, TDI Data Setup Time
10
ns
11
TMS, TDI Data Hold Time
10
ns
12
TCK Low to TDO Data Valid
0
20
ns
13
TCK Low to TDO High Impedance
0
20
ns
14
TRST Assert Time
100
ns
15
TRST Setup Time to TCK Low
40
ns
V
TCK
1
2
3
VM
IH
IL
(INPUT)
TCK
TRST
(INPUT)
15
14
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