LAN9500 Datasheet, PDF (203/213 Pages) SMSC Corporation – USB 2.0 to 10/100 Ethernet Controller Promiscuous mode

LAN950x
8.5.7 JTAG TIMING
This section specifies the JTAG timing of the device.
FIGURE 8-9:
JTAG TIMING
TCK (Input)
t_tckp
t_tckhl
t_tckhl
t_su
t_h
TDI, TMS (Inputs)
t_dov
t_doh
TDO (Output)
TABLE 8-22: JTAG TIMING VALUES
Symbol
Description
t_tckp
t_tckhl
t_su
t_h
t_dov
t_doinvld
TCK clock period
TCK clock high/low time
TDI, TMS setup to TCK rising edge
TDI, TMS hold from TCK rising edge
TDO output valid from TCK falling edge
TDO output invalid from TCK falling edge
MIN
66.67
t_tckp*0.4
10
10
0
TYP
t_tckp*0.6
16
MAX
ns
ns
ns
ns
ns
ns
Notes
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DS00001875A-page 203