HD64F3039F18 Datasheet, PDF (661/710 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8 Family / H8/300H Series

SSR—Serial Status Register
Appendix B Internal I/O Register Field
H'BC
SCI1
Bit
Initial value
Read/Write
7
TDRE
1
R/(W)*
6
RDRF
0
R/(W)*
5
ORER
0
R/(W)*
4
FER
0
R/(W)*
3
PER
0
R/(W)*
2
TEND
1
R
Notes: Bit functions are the same as for SCI0.
* Only 0 can be written to clear the flag.
1
MPB
0
R
0
MPBT
0
R/W
RDR—Receive Data Register
H'BD
SCI1
Bit
7
6
5
4
3
2
1
0
Initial value
0
0
0
0
0
0
0
0
Read/Write
R
R
R
R
R
R
R
R
Note: Bit functions are the same as for SCI0.
P1DDR—Port 1 Data Direction Register
H'C0
Port 1
Bit
7
6
5
4
3
2
1
0
P1₇ DDR P1₆ DDR P1₅ DDR P1₄ DDR P1₃ DDR P1₂ DDR P1₁ DDR P1₀ DDR
Modes ^{Initial value 1}
1
1
1
1
1
1
1
1 and 3 _{Read/Write —}
—
—
—
—
—
—
—
Modes ^{Initial value 0}
0
0
0
0
0
0
0
5 to 7 _{Read/Write W}
W
W
W
W
W
W
W
Port 1 input/output select
0 Generic input pin
1 Generic output pin
Rev.3.00 Mar. 26, 2007 Page 637 of 682
REJ09B0353-0300