HD64F3028F25 Datasheet, PDF (309/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

Table 8.14 Port 8 Pin Functions in Modes 1 to 5
Pin
P84/CS0
Pin Functions and Selection Method
Bit P84DDR selects the pin function as follows
P84DDR
0
Pin function
P84 input
1
CS0 output
P83/CS1/IRQ3/
ADTRG
Bit P83DDR selects the pin function as follows
P83DDR
0
Pin function
P83 input
IRQ3 input
ADTRG input
1
CS1 output
P82/CS2/IRQ2
The DRAM interface settings by bits DRAS2 to DRAS0 in DRCRA, and bit
P82DDR, select the pin function as follows.
DRAM interface
settings
(1) in table below
(2) in table below
P82DDR
Pin function
0
P82 input
1
CS2 output
—
CS2 output^*
Note: * CS2 is output as RAS2.
DRAM interface
setting
(1)
IRQ3 input
(2)
DRAS2
0
1
DRAS1
0
1
0
1
DRAS0
0
1
0
1
0
1
0
1
Rev. 2.00, 09/03, page 277 of 890