PRELIMINARY
JTAG Timing and Switching Waveforms
Parameter
fJTAG
tTCYC
tTH
tTL
tTMSS
tTMSH
tTDIS
tTDIH
tTDOV
tTDOX
Description
Maximum JTAG TAP Controller Frequency
TCK Clock Cycle Time
TCK Clock High Time
TCK Clock Low Time
TMS Setup to TCK Clock Rise
TMS Hold After TCK Clock Rise
TDI Setup to TCK Clock Rise
TDI Hold after TCK Clock Rise
TCK Clock Low to TDO Valid
TCK Clock Low to TDO Invalid
CY7C0430V
CY7C0430V
–133
–100
Min.
Max.
Min.
Max.
10
10
100
100
40
40
40
40
10
10
10
10
10
10
10
10
20
20
0
0
Unit
MHz
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Clock
TCK
Test Mode Select
TMS
Test Data-In
TDI
tTH
tTL
tTMSS
tTCYC
tTMSH
tTDIS
tTDIH
Test Data-Out
TDO
tTDOX
tTDOV
11