SH7080_09 Datasheet, PDF (1567/1622 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family

Appendix
B. Processing of Unused Pins
Table B.1 Processing of Unused Pins
Pin
Processing
NMI
WDTOVF
Fixed high-level (pull-up)
Open (If pull-down is necessary, use a resistor rated at
1 Ω or greater.)
AVref
AVref = Avcc
AVcc, AVss
ASEMD0
AVcc = Vcc, AVss = Vss
Fixed high-level (pull-up)
PF0 to PF7 (PF0 to PF15 in SH7086)
Connect to AVcc or AVss via a resistor.
Input-only pins other than the above
Fixed (pull-up/pull-down)
I/O pins other than the above
Fixed at input pin setting (pull-up/pull-down) or set to
output and left open
Output-only pins
Open
Notes: 1. For pull-up or pull-down, connect to Vcc or GND via a resistor.
2. When using the H-UDI, pin processing is according to the specifications of the
emulator.
Rev. 4.00 Dec. 15, 2009 Page 1507 of 1558
REJ09B0181-0400