SM470R1B1M-HT Datasheet, PDF (45/67 Pages) Texas Instruments – 16/32-BIT RISC FLASH MICROCONTROLLER

SM470R1B1M-HT
www.ti.com
SPNS155F – SEPTEMBER 2009 – REVISED AUGUST 2012
JTAG SCAN INTERFACE TIMING (JTAG CLOCK SPECIFICATION 10-MHz AND 50-pF LOAD ON
TDO OUTPUT)⁽¹⁾
MIN
MAX UNIT
t_c(JTAG)
t_{su(TDI/TMS - TCKr)}
t_{h(TCKr -TDI/TMS)}
t_{h(TCKf -TDO)}
t_{d(TCKf -TDO)}
Cycle time, JTAG low and high period
Setup time, TDI, TMS before TCK rise (TCKr)
Hold time, TDI, TMS after TCKr
Hold time, TDO after TCKf
Delay time, TDO valid after TCK fall (TCKf)
50
ns
15
ns
15
ns
10
ns
45 ns
(1) Not production tested.
TCK
TMS
TDI
t_c(JTAG)
t_{su(TDI/TMS Ć TCKr)}
t_{h(TCKr Ć TDI/TMS)}
t_c(JTAG)
TDO
t_{h(TCKf Ć TDO)}
t_{d(TCKf Ć TDO)}
Figure 12. JTAG Scan Timings
Copyright © 2009–2012, Texas Instruments Incorporated
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