LM3S8938 Datasheet, PDF (521/550 Pages) List of Unclassifed Manufacturers – Microcontroller

LM3S8938 Microcontroller
Figure 22-7. SSI Timing for SPI Frame Format (FRF=00), with SPH=1
SSIClk
(SPO=0)
SSIClk
(SPO=1)
SSITx
(master)
SSIRx
(slave)
S4
S6 S7
MSB
S5
S8 S9
MSB
S1
S2
S3
LSB
LSB
SSIFss
22.2.10 JTAG and Boundary Scan
Table 22-24. JTAG Characteristics
Parameter No.
Parameter
Parameter Name
Min Nom Max Unit
J1
f_TCK
TCK operational clock frequency 0 - 10 MHz
J2
t_TCK
TCK operational clock period 100 - - ns
J3
t_{TCK_LOW}
TCK clock Low time
- t_TCK - ns
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
June 14, 2007
521
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