M16C6NK Datasheet, PDF (277/404 Pages) Renesas Technology Corp – 16-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/60 SERIES

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M16C/6N Group (M16C/6NK, M16C/6NM)
20. Programmable I/O Ports
Microcomputer
Port P0 to P14 (Input mode)
(except for P8_5) ⁽²⁾
(Input mode)
(Output mode)
NMI
XOUT
AVCC
BYTE
AVSS
VREF
Open
VCC
Open
VCC
VCC
VSS
In single-chip mode
Microcomputer
Port P6 to P14 (Input mode)
(except for P8_5) ⁽²⁾
(Input mode)
(Output mode)
Port P4_5/CS1
to P4_7/CS3
NMI
BHE
HLDA
ALE
XOUT
BCLK ⁽¹⁾
HOLD
Open
VCC
Open
VCC
RDY
AVCC
AVSS
VREF
VSS
In memory expansion mode or
in microprocessor mode ⁽³⁾
NOTES:
1.If the PM07 bit in the PM0 register is set to "1" (BCLK not output), connect this pin to VCC via a resistor. (pulled high).
2.The ports P11 to P14 are only in the 128-pin version. When not using all of 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.
3. Not available in T/V-ver..
Figure 20.12 Unassigned Pins Handling
Rev.2.00 Nov 28, 2005 page 259 of 378
REJ09B0124-0200