M38005M2FS View Datasheet(PDF) - MITSUBISHI ELECTRIC

Part Name

Description

Manufacturer

M38005M2FS

8-BIT SINGLE-CHIP MICROCOMPUTER

MITSUBISHI ELECTRIC  

CPU mode register

The CPU mode register is allocated at address 003B16.

The CPU mode register contains the stack page selection bit.

b7

b0

CPU mode register

(CPUM : address 003B16)

Processor mode bits

b1 b0

0 0 : Single-chip mode

0 1 : Memory expansion mode

1 0 : Microprocessor mode

1 1 : Not available

Stack page selection bit

0 : 0 page

1 : 1 page

Not used (return “0” when read)

Fig. 9 Structure of CPU mode register

HARDWARE

FUNCTIONAL DESCRIPTION

3800 GROUP USER’S MANUAL

1-13

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