m37905 Renesas Electronics Corporation., m37905 Datasheet - Page 75

• Manufacturer Part Number: m37905
• Description: Mitsubishi 16-bit Single-chip Microcomputer 7700 Family / 7900 Series
• Manufacturer: Renesas Electronics Corporation.

devices’s I/O pins, etc.
internal peripheral devices, refer to relevant sections of each internal peripheral device.
the memory map of direction registers and port registers.
INPUT/OUTPUT PINS
5.1 Overview, 5.2 Programmable I/O ports
5.1 Overview
Input/output pins (hereafter called I/O pins) have functions as programmable I/O port pins, internal peripheral
For the basic functions of each I/O pin, refer to section “1.3 Pin description.” For the I/O functions of the
This chapter describes the programmable I/O ports and examples of handling unused pins.
5.2 Programmable I/O ports
The programmable I/O ports have direction registers and port registers in the SFR area. Figure 5.2.1 shows
Fig. 5.2.1 Memory map of direction registers and port registers
5-2
Addresses
10
11
12
13
14
C
D
A
B
E
F
3
4
5
6
7
8
9
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
16
Note: Do not write to this address.
7905 Group User’s Manual Rev.1.0
Port P1 direction register
Port P2 direction register
Port P4 direction register
Port P5 direction register
Port P6 direction register
Port P7 direction register
Port P8 direction register
Port P1 register
Port P2 register
Port P4 register
Port P5 register
Port P6 register
Port P7 register
Port P8 register
(Note)
(Note)
(Note)
(Note)