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HD64F3028F25 Datasheet, PDF (338/925 Pages) Renesas Technology Corp – Hardware Manual Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
Pin
PB3/TP11/
TMIO3/
DREQ1
PB2/TP10/
TMO2
PB1/TP9/
TMIO1/
DREQ0
Pin Functions and Selection Method
Bits OIS3/2 and OS1/0 in TCSR3, bits CCLR1 and CCLR0 in TCR3, bit NDER11
in NDERB, and bit PB3DDR select the pin function as follows.
OIS3/2 and
OS1/0
All 0
Not all 0
PB3DDR
NDER11
0
1
1
—
—
0
1
—
Pin function
PB3 input
PB3 output TP11 output TMIO3 output
TMIO3 input*1
DREQ1 input*2
Notes: 1. TMIO3 input when CCLR1 = CCLR0 = 1.
2. When an external request is specified as a DMAC activation source,
DREQ1 input regardless of bits OIS3/2 and OS1/0, bit NDER11, and
bit PB3DDR.
Bits OIS3/2 and OS1/0 in TCSR2, bit NDER10 in NDERB, and bit PB2DDR select
the pin function as follows.
OIS3/2 and
OS1/0
All 0
Not all 0
PB2DDR
NDER10
0
1
1
—
—
0
1
—
Pin function
PB2 input
PB2 output TP10 output TMO2 output
Bits OIS3/2 and OS1/0 in TCSR1, bits CCLR1 and CCLR0 in TCR1, bit NDER9 in
NDERB, and bit PB1DDR select the pin function as follows.
OIS3/2 and
OS1/0
All 0
Not all 0
PB1DDR
NDER9
0
1
1
—
—
0
1
—
Pin function
PB1
input
PB1
output
TP9
output
TMIO1
output
TMIO1 input*1
DREQ0 input*2
Notes: 1. TMIO1 input when CCLR1 = CCLR0 = 1.
2. When an external request is specified as a DMAC activation source,
DREQ0 input regardless of bits OIS3/2 and OS1/0, bit NDER9, and bit
PB1DDR.
Rev. 2.00, 09/03, page 306 of 890