Port 9; Port 9 Register (Port9); Pin Functions - Renesas H8S/2368 Series Hardware Manual

9.7

Port 9

Port 9 is a 2-bit input-only port. Port 9 has the following register.

• Port 9 register (PORT9)

9.7.1 Port 9 Register (PORT9)
PORT9 is an 8-bit read-only register that shows port 4 pin states.
PORT9 cannot be modified.
Bit Bit Name Initial Value
7 — Undefined
6 — Undefined
5 P95 —*
4 P94 —*
3 — Undefined
2 — Undefined
1 — Undefined
0 — Undefined
Note: * Determined by the states of pins P95 and P94.
9.7.2

Pin Functions

Port 9 also functions as the pins for A/D converter analog input and D/A converter analog output.
The correspondence between pins are as follows.
P95/AN13/DA3
Pin function
P94/AN12/DA2
Pin function
R/W Description
R Reserved
If read they will return an undefined value.
R
R The pin states are always read when a port 9 read
is performed.
R
R Reserved
If read they will return an undefined value.
R
R
R
AN13 input
DA3 output
AN12 input
DA2 output
Rev. 2.00, 05/03, page 339 of 820