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M16C/62P Group (M16C/62P, M16C/62PT)
Microcomputer
Port P0 to P14
(Input mode)
(2)
(except for P8_5)
(Input mode)
(Output mode)
In single-chip mode
NOTES :
1. If the PM07 bit in the PM0 register is set to "1" (BCLK not output), connect this pin to VCC2 via a resistor
(pulled high).
2. When not using all of the P11 to P14, the P11 to P14 pins may be left open by setting the PU37 bit in the
PUR3 register to "0" (P11 to P14 unusable) without causing any problem.
Figure 21.12 Unassigned Pins Handling
R
e
. v
2
3 .
0
S
e
p
0
, 1
2
0
0
4
R
E
J
0
9
B
0
1
8
5
0 -
2
3
0
Z
·
·
·
·
·
·
Open
VCC1
NMI
XOUT
Open
VCC1
AVCC
BYTE
AVSS
VREF
VSS
page 241
f o
3
6
4
Microcomputer
Port P6 to P14
(2)
(except for P8_5)
VCC2
Port P4_5 / CS1
to P4_7 / CS3
In memory expansion mode or
in microprocessor mode
21. Programmable I/O Ports
(Input mode)
·
·
·
·
·
·
(Input mode)
VCC1
Open
(Output mode)
NMI
BHE
HLDA
ALE
Open
XOUT
VCC2
(1)
BCLK
HOLD
RDY
AVCC
AVSS
VREF
VCC1
VSS
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