LAN9353 Datasheet, PDF (501/523 Pages) Microchip Technology – Interfaces at up to 200Mbps via Turbo MII

19.1.1 JTAG TIMING REQUIREMENTS
This section specifies the JTAG timing of the device.
FIGURE 19-1:
JTAG TIMING
TCK (Input)
t_tckp
t_tckhl
t_tckhl
t_su
t_h
TDI, TMS (Inputs)
t_dov
t_doinvld
TDO (Output)
LAN9353
TABLE 19-2: JTAG TIMING VALUES
Symbol
t_tckp
t_tckhl
t_su
t_h
t_dov
t_doinvld
Description
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
40
t_tckp*0.4
5
5
0
Note: Timing values are with respect to an equivalent test load of 25 pF.
Max
t_tckp*0.6
15
Units
ns
ns
ns
ns
ns
ns
Notes
 2015 Microchip Technology Inc.
DS00001925A-page 501