HD6473847RHV Datasheet, PDF (242/546 Pages) Renesas Technology Corp – Renesas 8-Bit Single-Chip Microcomputer H8 Family / H8/300L Super Low Power Series

Section 8 I/O Ports
• PA0/COM1 pin
The pin function depends on the combination of bit PCRA0 in PCRA and bits SGS3 to SGS0 in
LPCR.
SGS3 to SGS0
B'0000
PCRA0
0
Pin Function
PA0 input pin
Legend: *: Don't care.
B'0000
1
PA0 output pin
Other than B'0000
*
COM1 output pin
8.9 Port B
Port B is an input-only port also functioning as an analog input pin and interrupt input pin. Figure
8.10 shows its pin configuration.
Port B
PB3/AN3/IRQ1
PB2/AN2
PB1/AN1/extU^*
PB0/AN0/extD^*
Note: * The extU and extD pins are implemented on the H8/38104 Group only.
Figure 8.10 Port B Pin Configuration
Port B has the following registers.
• Port data register B (PDRB)
• Port mode register B (PMRB)
Rev. 7.00 Mar. 08, 2010 Page 210 of 510
REJ09B0024-0700