HD6475348R Datasheet, PDF (166/487 Pages) Hitachi Semiconductor – Single-Chip Microcomputer

Table 9-4 Port 1 Pin Functions in Single-Chip Modes
Pin
P17 / TMO
Selection of Pin Functions
The function depends on output select bits 3 to 0 (OS3 to OS0) of the 8-bit timer
control/status register (TCSR) and on the P17DDR bit as follows:
OS3 to OS0
P17DDR
Pin function
All four bits are 0
0
1
P17 input P17 output
At least one bit is 1
0
1
TMO output
P16 / IRQ1
/ ADTRG
The function depends on the IRQ1E bit and the trigger enable bit (TRGE)
in the A/D control register (ADCR) as follows:
IRQ1E
0
1
TRGE
0
1
0
1
Pin function P16 input/ ADTRG IRQ1 input IRQ1 and
output
input
ADTRG
input
When used for P16 input/output, the input or output function is selected by P16DDR.
P15 / IRQ0 The function depends on the IRQ0E bit and the P15DDR bit as follows:
IRQ0E
P15DDR
Pin function
0
0
1
P15 input P15 output
1
0
1
IRQ0 input
P14
P14DDR
0
1
Pin function Input
Output
P13
P13DDR
0
1
Pin function Input
Output
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