HD6412240 RENESAS [Renesas Technology Corp], HD6412240 Datasheet - Page 282

• Manufacturer Part Number: HD6412240
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family / H8S/2200 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 8 I/O Ports
8.7
8.7.1
Port A is an 4-bit I/O port. Port A pins also function as address bus outputs. The pin functions
change according to the operating mode.
Port A has a built-in MOS input pull-up function that can be controlled by software.
Figure 8.6 shows the port A pin configuration.
8.7.2
Table 8.11 shows the port A register configuration.
Rev.3.00 Mar. 26, 2007 Page 240 of 772
REJ09B0355-0300
Note: * Modes 2, 3, 6, and 7 cannot be used in the H8S/2240.
Port A
Overview
Register Configuration
Pin functions in modes 4 and 5
A
A
A
A
1 9
1 8
1 7
1 6
Port A
(output)
(output)
(output)
(output)
Figure 8.6 Port A Pin Functions
Port A pins
PA
PA
PA
PA
3
2
1
0
/ A
/ A
/ A
/ A
19
18
17
16
Pin functions in modes 1, 2, 3, and 7 *
PA
PA
PA
PA
Pin functions in mode 6 *
PA
PA
PA
PA
3
2
1
0
3
2
1
0
(input)/
(input)/
(input)/
(input)/
(I/O)
(I/O)
(I/O)
(I/O)
A
A
A
A
19
18
17
16
(output)
(output)
(output)
(output)