Datasheet

USB 2.0 Hub and 10/100 Ethernet Controller
Datasheet
SMSC LAN9512/LAN9512i 47 Revision 1.2 (02-29-12)
DATASHEET
4.5.4 JTAG Timing
This section specifies the JTAG timing of the device.
Figure 4.3 JTAG Timing
Table 4.9 JTAG Timing Values
SYMBOL DESCRIPTION MIN MAX UNITS NOTES
t
tckp
TCK clock period 66.67 ns
t
tckhl
TCK clock high/low time t
tckp
*0.4 t
tckp
*0.6 ns
t
su
TDI, TMS setup to TCK rising edge 10 ns
t
h
TDI, TMS hold from TCK rising edge 10 ns
t
dov
TDO output valid from TCK falling edge 16 ns
t
doh
TDO output hold from TCK falling edge 0 ns
TCK (Input)
TDI, TMS (Inputs)
t
tckhl
t
tckp
t
tckhl
t
su
t
h
t
dov
TDO (Output)
t
doh