HD64F2638F20J Datasheet, PDF (1504/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

Appendix D Pin States
H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
MCU
Port Name Operating
Pin Name Mode
PF3/LWR 4
5 to 6
Reset
H
T
Hardware
Standby
Mode
Software Standby Mode
T
[OPE = 0]
T
[OPE = 1]
H
7
T
T
kept
PF0
4 to 7
T
T
kept
Port H
4 to 7
T
T
kept
Port J
4 to 7
T
T
kept
HTxD0, 4 to 7
H
T
H
HTxD1
HRxD0, 4 to 7
Input T
T
HRxD1
Legend:
H: High level
L: Low level
T: High impedance
kept: Input port becomes high-impedance, output port retains state
DDR: Data direction register
OPE: Output port enable
Program Execution State
Sleep Mode
LWR
[16 Bit bus mode]
LWR
[Otherwise]
I/O port
I/O port
I/O port
I/O port
I/O port
Tx output
Rx output
Page 1454 of 1458
REJ09B0103-0800 Rev. 8.00
May 28, 2010