HD6413007F20 Datasheet, PDF (312/798 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series

8. I/O Ports
Pin
PB /TP /
2
10
TMO /CS
2
5
Pin Functions and Selection Method
The DRAM interface settings by bits DRAS2 to DRAS0 in DRCRA, bits OIS3/2 and
OS1/0 in 8TCSR2, bit CS5E in CSCR, bit NDER10 in NDERB, and bit PB DDR
2
select the pin function as follows.
DRAM interface
settings
(1) in table below
(2) in
table
below
OIS3/2 and
OS1/0
All 0
Not all 0
⎯
CS5E
0
1
⎯
⎯
PB DDR
2
NDER10
0
1
1
⎯
0
1
Pin function
PB
2
input
PB
2
output
TP
10
output
Note:
*
CS
5
is
output
as
RAS₅.
DRAM interface
(1)
settings
⎯
⎯
CS
5
output
⎯
⎯
TMO
2
output
⎯
⎯
CS
5
output*
(2)
(1)
DRAS2
0
1
DRAS1
0
1
0
1
DRAS0
0
1
0
1
0
1
0
1
PB₁/TP₉/ Bits OIS3/2 and OS1/0 in 8TCSR1, bits CCLR1 and CCLR0 in 8TCR0, bit CS6E in
TMIO₁/
CSCR, bit NDER9 in NDERB, and bit PB₁DDR select the pin function as follows.
DREQ₀/CS₆
OIS3/2 and
All 0
Not all 0
OS1/0
CS6E
0
1
⎯
PB₁DDR
NDER9
0
1
⎯
0
1
⎯
⎯
1
⎯
⎯
Pin function
PB₁
input
PB₁
output
TP₉
output
CS
6
output
TMIO₁
output
TMIO
1
input*¹
DREQ
0
input*²
Notes: 1. TMIO1 input when CCLR1 = CCLR0 = 1.
2. DREQ0 input when an external request is specified as a DMAC
activation source, regardless of bits OIS3/2, OS1/0, CCLR1/0, CS6E,
NDER9, PB₁ DDR.
Rev.5.00 Sep. 12, 2007 Page 282 of 764
REJ09B0396-0500