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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
RES
STBY
EMLE
MD2, MD1, MD0
NMI
EXTAL
XTAL
WDTOVF
Port 1
Port 2
Port 3
Port 6
PA2 to PA0
PB3 to PB0
PF7 to PF5
Port 5
PA7
PA6
PA5
PA4
PA3
PB0
Rev.2.00 Jun. 28, 2007 Page 652 of 666
REJ09B0311-0200
Mode 4
(Always used as a reset pin)
•
Connect to V
via a pull-up resistor
CC
•
Connect to V
via a pull-down resistor
SS
(Always used as operating mode pins)
•
Connect to V
via a pull-up resistor
CC
(Always used as a clock pin)
•
Leave the pin unconnected
•
Leave the pin unconnected
•
Connect each pin to V
resistor
•
Connect each pin to AV
resistor
•
Since this is the Bφ output in its initial state, leave the pin unconnected.
Since this is the AS output in its initial state, leave the pin unconnected.
•
Since this is the RD output in its initial state, leave the pin unconnected.
•
Since this is the LHWR output in its initial state, leave the pin
•
unconnected.
Since this is the LLWR output in its initial state, leave the pin
•
unconnected.
Since this is the CS0 output in its initial state, leave the pin unconnected.
•
Mode 5
via a pull-up resistor or to V
CC
via a pull-up resistor or to AV
CC
via a pull-down
SS
via a pull-down
SS
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