M32C8A Datasheet, PDF (313/372 Pages) Renesas Technology Corp – RENESAS MCU M16C FAMILY / M32C/80 Series

M32C/8A Group
22. Programmable I/O Ports
Table 22.1 Unassigned Pin Handling in Microprocessor Mode
Pin Name
Handling
P1, P6 to P15
(excluding P8_5)⁽¹⁾
Set pins to input mode and connect each pin to VSS via a resistor (pull-down);
or set pins to output mode and leave them open
BHE, ALE, HLDA,
XOUT⁽²⁾, BCLK
Leave the pin open
HOLD, RDY
Connect the pin to VCC2 via a resistor (pull-up)
NMI(P8_5)
Connect the pin to VCC1 via a resistor (pull-up)
VREF
Connect the pin to VSS
NOTES:
1. P11 to P15 are provided in the 144-pin package only.
2. When the external clock is applied to the XIN pin.
MCU
P1, P6 to P15^{(1) (Input mode)}
(except for P8_5)
(Input mode)
(Output mode)
NMI (P8_5)
BHE
HLDA
ALE
XOUT
BCLK
HOLD
RDY
AVCC
AVSS
VREF
In microprocessor mode
Open _VCC1
Open
VCC2
VCC1
VSS
NOTE:
1. P11 to P15 are provided in the 144-pin package only.
Figure 22.17 Unassigned Pin Handling
Rev.1.00 Jul 15, 2007 Page 296 of 352
REJ09B0385-0100