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R01UH0092EJ0110 Rev.1.10
Page 131 of 807
Jul 31, 2012
M16C/64C Group
10. Processor Mode
10. Processor Mode
10.1
Introduction
Single-chip mode, memory expansion mode, or microprocessor mode can be selected for the processor
mode. Table 10.1 lists the Processor Mode Features.
Table 10.1
Processor Mode Features
Processor Mode
Access Space
Pins Assigned as I/O Ports
Single-chip mode
SFR, internal RAM, internal ROM
All pins are I/O ports or
peripheral function I/O pins
Memory expansion mode
SFR, internal RAM, internal ROM,
external area
(1)
Some pins serve as bus control pins
(1)
Microprocessor mode
SFR, internal RAM, external area
(1)
Some pins serve as bus control pins
(1)
Note:
1.
Refer to 11. “Bus”
for details.
Table 10.2
I/O Pins
Pin Name
I/O
Function
CNVSS
Input
Selects a processor mode
Содержание M16C Series
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