M37220M3-010SP MITSUBISHI [Mitsubishi Electric Semiconductor], M37220M3-010SP Datasheet - Page 6

• Manufacturer Part Number: M37220M3-010SP
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER with ON-SCREEN DISPLAY CONTROLLER?
• Manufacturer: MITSUBISHI [Mitsubishi Electric Semiconductor]

Fig. 1. Structure of CPU mode register
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FUNCTIONAL DESCRIPTION
Central Processing Unit (CPU)
The M37220M3-XXXSP uses the standard 740 family instruction set.
Refer to the table of 740 family addressing modes and machine in-
structions or the SERIES 740 <Software> User’s Manual for details
on the instruction set.
Machine-resident 740 family instructions are as follows:
The FST, SLW instruction cannot be used.
The MUL, DIV, WIT and STP instruction can be used.
Note : Please beware of this bit when programming because it
7
1 1
is set to “1” after the reset release.
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER for VOLTAGE SYNTHESIZER
1
1 1
0
0
0
Fix these bits to “0.”
CPU mode register
(CPUM : address 00FB
Stack page selection bit (Note)
Fix these bits to “1.”
0 : Zero page
1 : 1 page
CPU Mode Register
The CPU mode register contains the stack page selection bit. The
CPU mode register is allocated at address 00FB
with ON-SCREEN DISPLAY CONTROLLER
16
)
MITSUBISHI MICROCOMPUTERS
M37220M3-XXXSP
16
.