HD64F2149 Datasheet, PDF (229/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

8.2 Port 1
8.2.1 Overview
Port 1 is an 8-bit I/O port. Port 1 pins also function as address bus output function, and as 8-bit
PWM output pins (PW7 to PW0). Port 1 functions change according to the operating mode. Port 1
has a built-in MOS input pull-up function that can be controlled by software.
Figure 8.1 shows the port 1 pin configuration.
Port 1
Port 1 pins
P17/A7/PW7
P16/A6/PW6
P15/A5/PW5
P14/A4/PW4
P13/A3/PW3
P12/A2/PW2
P11/A1/PW1
P10/A0/PW0
Pin functions in mode 1
A7 (Output)
A6 (Output)
A5 (Output)
A4 (Output)
A3 (Output)
A2 (Output)
A1 (Output)
A0 (Output)
Pin functions in modes 2 and 3 (EXPE = 1)
A7 (Output)/P17 (Input)/PW7 (Output)
A6 (Output)/P16 (Input)/PW6 (Output)
A5 (Output)/P15 (Input)/PW5 (Output)
A4 (Output)/P14 (Input)/PW4 (Output)
A3 (Output)/P13 (Input)/PW3 (Output)
A2 (Output)/P12 (Input)/PW2 (Output)
A1 (Output)/P11 (Input)/PW1 (Output)
A0 (Output)/P10 (Input)/PW0 (Output)
Pin functions in modes 2 and 3 (EXPE = 0)
P17 (I/O)/PW7 (Output)
P16 (I/O)/PW6 (Output)
P15 (I/O)/PW5 (Output)
P14 (I/O)/PW4 (Output)
P13 (I/O)/PW3 (Output)
P12 (I/O)/PW2 (Output)
P11 (I/O)/PW1 (Output)
P10 (I/O)/PW0 (Output)
Figure 8.1 Port 1 Pin Functions
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