TC1796
System Units (Vol. 1 of 2)
General Purpose I/O Ports and Peripheral I/O Lines
User’s Manual 10-41 V2.0, 2007-07
Ports, V2.0
10.6.2 Port 3 Function Table
Table 10-13 summarizes the I/O control selection functions of each Port 3 line.
Table 10-13 Port 3 Functions
Port
Pin
I/O Pin Functionality Associated Reg./
I/O Line
Port I/O Control Select.
Reg./Bit Field Value
P3.0 I General-purpose input P3_IN.P0 P3_IOCR0.PC0 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN8
O General-purpose output P3_OUT.P0 1X00
B
GPTA0 output OUT8 1X01
B
GPTA1 output OUT8 1X10
B
LTCA2 output OUT8 1X11
B
P3.1 I General-purpose input P3_IN.P1 P3_IOCR0.PC1 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN9
O General-purpose output P3_OUT.P1 1X00
B
GPTA0 output OUT9 1X01
B
GPTA1 output OUT9 1X10
B
LTCA2 output OUT9 1X11
B
P3.2 I General-purpose input P3_IN.P2 P3_IOCR0.PC2 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN10
O General-purpose output P3_OUT.P2 1X00
B
GPTA0 output OUT10 1X01
B
GPTA1 output OUT10 1X10
B
LTCA2 output OUT10 1X11
B
P3.3 I General-purpose input P3_IN.P3 P3_IOCR0.PC3 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN11
O General-purpose output P3_OUT.P3 1X00
B
GPTA0 output OUT11 1X01
B
GPTA1 output OUT11 1X10
B
LTCA2 output OUT11 1X11
B
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