HD64F2149 Datasheet, PDF (232/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer

8.2.3 Pin Functions in Each Mode
Mode 1: In mode 1, port 1 pins automatically function as address outputs. The port 1 pin functions
are shown in figure 8.2.
Port 1
A7 (Output)
A6 (Output)
A5 (Output)
A4 (Output)
A3 (Output)
A2 (Output)
A1 (Output)
A0 (Output)
Figure 8.2 Port 1 Pin Functions (Mode 1)
Modes 2 and 3 (EXPE = 1): In modes 2 and 3 (when EXPE = 1), port 1 pins function as address
outputs, PWM outputs, or input ports, and input or output can be specified on a bit-by-bit basis.
When a bit in P1DDR is set to 1, the corresponding pin functions as an address output or PWM
output, and when cleared to 0, as an input port.
The port 1 pin functions are shown in figure 8.3.
Port 1
When P1DDR = 1
and PWOERA = 0
A7 (Output)
A6 (Output)
A5 (Output)
A4 (Output)
A3 (Output)
A2 (Output)
A1 (Output)
A0 (Output)
When P1DDR = 0
P17 (Input)
P16 (Input)
P15 (Input)
P14 (Input)
P13 (Input)
P12 (Input)
P11 (Input)
P10 (Input)
When P1DDR = 1
and PWOERA = 1
PW7 (Output)
PW6 (Output)
PW5 (Output)
PW4 (Output)
PW3 (Output)
PW2 (Output)
PW1 (Output)
PW0 (Output)
Figure 8.3 Port 1 Pin Functions (Modes 2 and 3 (EXPE = 1))
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