Pin Functions - Renesas H8S Series Hardware Manual

9.7.3

Pin Functions

Port 6 pins also function as interrupt input pins (IRQ0 to IRQ3), DMAC I/O pins (DREQ0, TEND0, DREQ1, and
TEND1), and bus control output pins (CS4 to CS7). Port 6 pin functions are shown in table 9-12.
Table 9-12 Port 6 Pin Functions
Pin
P6 /IRQ3/CS7
7
P6 /IRQ2/CS6
6
P6 /IRQ1
5
P6 /IRQ0
4
Selection Method and Pin Functions
The pin function is switched as shown below according to bit P67DDR.
Mode
P67DDR 0
Pin function P6 input pin P6
7
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
The pin function is switched as shown below according to bit P66DDR.
Mode
P66DDR 0
Pin function P6 input pin P6
6
Note: * Modes 6 and 7 are provided in the on-chip ROM version only.
The pin function is switched as shown below according to bit P65DDR.
P65DDR
Pin function
The pin function is switched as shown below according to bit P64DDR.
P64DDR
Pin function
Mode 7*
1
output pin P6
7
IRQ3 interrupt input pin
Mode 7*
1
output pin P6
6
IRQ2 interrupt input pin
0
P6 input pin
5
IRQ1 interrupt input pin
0
P6 input pin
4
IRQ0 interrupt input pin
Modes 4 to 6*
0 1
input pin CS7 output pin
7
Modes 4 to 6*
0 1
input pin CS6 output pin
6
1
P6 output pin
5
1
P6 output pin
4
Rev.6.00 Oct.28.2004 page 299 of 1016
REJ09B0138-0600H