Texas Instruments Hercules TMS570LS04x/03x LaunchPad Evaluation Kit LAUNCHXL-TMS57004 LAUNCHXL-TMS57004 数据表
产品代码
LAUNCHXL-TMS57004
1
1
2
3
4
5
TMS
TDI
TDO
RTCK
TCK
SPNS186A – OCTOBER 2012 – REVISED SEPTEMBER 2013
4.20.5 JTAG Scan Interface Timings
Table 4-30. JTAG Scan Interface Timing
(1)
No.
Parameter
Min
MAX
Unit
fTCK
TCK frequency (at HCLKmax)
12
MHz
fRTCK
RTCK frequency (at TCKmax and HCLKmax)
10
MHz
1
td(TCK -RTCK)
Delay time, TCK to RTCK
24
ns
2
tsu(TDI/TMS - RTCKr)
Setup time, TDI, TMS before RTCK rise (RTCKr)
26
ns
3
th(RTCKr -TDI/TMS)
Hold time, TDI, TMS after RTCKr
0
ns
4
th(RTCKr -TDO)
Hold time, TDO after RTCKf
0
ns
5
td(TCKf -TDO)
Delay time, TDO valid after RTCK fall (RTCKf)
12
ns
(1)
Timings for TDO are specified for a maximum of 50pF load on TDO
Figure 4-15. JTAG Timing
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System Information and Electrical Specifications
65
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