LM3S3748 Datasheet, PDF (700/753 Pages) List of Unclassifed Manufacturers – Microcontroller

Electrical Characteristics
Parameter No.
Parameter
Parameter Name
Min Nom Max Unit
J4
t_{TCK_HIGH}
TCK clock High time
- t_TCK - ns
J5
t_{TCK_R}
TCK rise time
0 - 10 ns
J6
t_{TCK_F}
TCK fall time
0 - 10 ns
J7
t_{TMS_SU}
TMS setup time to TCK rise
20 - - ns
J8
t_{TMS_HLD}
TMS hold time from TCK rise
20 - - ns
J9
t_{TDI_SU}
TDI setup time to TCK rise
25 - - ns
J10
t_{TDI_HLD}
TDI hold time from TCK rise
25 - - ns
J11
TCK fall to Data Valid from High-Z
2-mA drive
- 23 35 ns
t _{TDO_ZDV}
4-mA drive
8-mA drive
15 26 ns
14 25 ns
8-mA drive with slew rate control
18 29 ns
J12
TCK fall to Data Valid from Data Valid
2-mA drive
- 21 35 ns
t _{TDO_DV}
4-mA drive
8-mA drive
14 25 ns
13 24 ns
8-mA drive with slew rate control
18 28 ns
J13
TCK fall to High-Z from Data Valid
2-mA drive
- 9 11 ns
t _{TDO_DVZ}
4-mA drive
8-mA drive
7 9 ns
6 8 ns
8-mA drive with slew rate control
7 9 ns
Figure 24-7. JTAG Test Clock Input Timing
J2
J3
J4
TCK
J6
J5
Figure 24-8. JTAG Test Access Port (TAP) Timing
TCK
TMS
TDI
TDO
J7
J8
J7
J8
TMS Input Valid
TMS Input Valid
J9
J10
J9
J10
TDI Input Valid
TDI Input Valid
J11
J12
J13
TDO Output Valid
TDO Output Valid
700
April 08, 2008
Preliminary