TC1796
System Units (Vol. 1 of 2)
General Purpose I/O Ports and Peripheral I/O Lines
User’s Manual 10-48 V2.0, 2007-07
Ports, V2.0
10.7.2 Port 4 Function Table
Table 10-15 summarizes the I/O control selection functions of each Port 4 line.
Table 10-15 Port 4 Functions
Port
Pin
I/O Pin Functionality Associated Reg./
I/O Line
Port I/O Control Select.
Reg./Bit Field Value
P4.0 I General-purpose input P4_IN.P0 P4_IOCR0.PC0 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN24
O General-purpose output P4_OUT.P0 1X00
B
GPTA0 output OUT24 1X01
B
GPTA1 output OUT24 1X10
B
LTCA2 output OUT24 1X11
B
P4.1 I General-purpose input P4_IN.P1 P4_IOCR0.PC1 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN25
O General-purpose output P4_OUT.P1 1X00
B
GPTA0 output OUT25 1X01
B
GPTA1 output OUT25 1X10
B
LTCA2 output OUT25 1X11
B
P4.2 I General-purpose input P4_IN.P2 P4_IOCR0.PC2 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN26
O General-purpose output P4_OUT.P2 1X00
B
GPTA0 output OUT26 1X01
B
GPTA1 output OUT26 1X10
B
LTCA2 output OUT26 1X11
B
P4.3 I General-purpose input P4_IN.P3 P4_IOCR0.PC3 0XXX
B
GPTA0/GPTA1/LTCA2
input
IN27
O General-purpose output P4_OUT.P3 1X00
B
GPTA0 output OUT27 1X01
B
GPTA1 output OUT27 1X10
B
LTCA2 output OUT27 1X11
B
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