HD64F2638F20J Datasheet, PDF (307/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 9 I/O Ports
Pin
PA2/A18/RxD2
Selection Method and Pin Functions
The pin function is switched as shown below according to the operating mode,
bits AE3 to AE0 in PFCR, bit RE in SCR of SCI2, and bit PA2DDR.
Operating mode
Modes 4 to 6
AE3 to AE0
B'0000 to B'1011
B'1011 to B'1111
RE
0
1
—
PA2DDR
0
1
—
—
Pin function
PA2 input PA2 output RxD2 input A18 output
Operating mode
RE
PA2DDR
Pin function
0
PA2 input
Mode 7
0
1
PA2 output
1
—
RxD2 input
PA1/A17/TxD2
The pin function is switched as shown below according to the operating mode,
bits AE3 to AE0 in PFCR, bit TE in SCR of SCI2, and bit PA1DDR.
Operating mode
Modes 4 to 6
AE3 to AE0
B'0000 to B'1001
B'1010 to B'1111
TE
0
1
—
PA1DDR
0
1
—
—
Pin function
PA1 input PA1 output TxD2 output A17 output
Operating mode
TE
PA1DDR
Pin function
0
PA1 input
Mode 7
0
1
PA1 output
1
—
TxD2 output
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 257 of 1458