HD6412332 RENESAS [Renesas Technology Corp], HD6412332 Datasheet - Page 415

• Manufacturer Part Number: HD6412332
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

9.9.3
Port 8 pins also function as DMAC I/O pins (DREQ
DACK
Table 9.16 Port 8 Pin Functions
Pin
P8
P8
P8
6
5
4
/WAIT
/DACK
/DACK
1
) and a bus control signal input pin (WAIT). Port 8 pin functions are shown in table 9.16.
Pin Functions
1
0
Selection Method and Pin Functions
The pin function is switched as shown below according to the combination of
the operating mode and bits WAITE, WAITPS, and P86DDR.
The pin function is switched as shown below according to the combination of
bit SAE1 in DMABCRH and bit P85DDR.
The pin function is switched as shown below according to the combination of
bit SAE0 in DMABCRH and bit P84DDR.
Operating mode
[WAITE ⋅ WAITPS]
P86DDR
Pin function
SAE1
P85DDR
Pin function
SAE0
P84DDR
Pin function
P8
P8
input
P8
pin
5
4
0
input pin
input pin
6
0
0
0
0
output
, TEND
P8
Modes 4 to 6
pin
1
0
0
Rev.4.00 Sep. 07, 2007 Page 385 of 1210
6
P8
P8
5
4
0
pin
pin
, DACK
output
output
1
1
WAIT
input
pin
0
1
0
, DREQ
Setting
hibited
pro-
1
DACK
DACK
1
, TEND
REJ09B0245-0400
1
0
input
P8
pin
—
output pin
—
output pin
0
1
1
6
Mode 7
1
—
, and
output
P8
pin
1
6