Treatment Of Unused Pins - Renesas H8S/2100 Series Hardware Manual

Appendix
D.

Treatment of Unused Pins

The treatments of unused pins are listed in table D.1.
Table D.1 Treatment of Unused Pins
Pin Name Example of Pin Treatment
RES
(Always used as a reset pin)
ETRST
(Always used as a reset pin)
MD2, MD1 (Always used as mode pins)
•
NMI
EXTAL
(Always used as a clock pin)
XTAL
(Always used as a clock pin)
•
Port 1
Port 2
Port 3
Port 4
Port 5
Port 6
Port 8
Port 9
Port A
Port B
Port C
Port D
Port F
Port G
Port H
Port I
Port J
•
Port 7
•
Port E
Rev. 1.00 Apr. 28, 2008 Page 988 of 994
REJ09B0452-0100
Connect to V via a pull-up resistor
CC
Connect each pin to V
resistor
Connect each pin to AV
resistor
Connect each pin to V
via a pull-up resistor or to V
CC
via a pull-up resistor or to AV
CC
via a pull-up resistor
CC
via a pull-down
SS
via a pull-down
SS