LM3S1621 Datasheet, PDF (850/947 Pages) Texas Instruments – ARM and Thumb are registered trademarks and Cortex is a trademark

Signal Tables
Table 19-4. Signals by Function, Except for GPIO (continued)
Function
Pin Name Pin Number Pin Type Buffer Type^a
Description
SSI0Clk
28
I/O
TTL
SSI module 0 clock.
SSI0Fss
29
I/O
TTL
SSI module 0 frame.
SSI0Rx
30
I
TTL
SSI module 0 receive.
SSI0Tx
31
O
TTL
SSI module 0 transmit.
SSI1Clk
60
74
76
I/O
TTL
SSI module 1 clock.
SSI
SSI1Fss
59
I/O
TTL
SSI module 1 frame.
63
75
SSI1Rx
58
62
95
I
TTL
SSI module 1 receive.
SSI1Tx
15
O
TTL
SSI module 1 transmit.
46
96
NMI
89
I
TTL
Non-maskable interrupt.
System Control &
Clocks
OSC0
OSC1
48
I
Analog Main oscillator crystal input or an external clock
reference input.
49
O
Analog Main oscillator crystal output. Leave unconnected
when using a single-ended clock source.
RST
64
I
TTL
System reset input.
850
January 21, 2012
Texas Instruments-Production Data