M30622ECTFP datasheet(37/184 Pages) MITSUBISHI

No de pièce	M30622ECTFP

Description	SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

PDF	184 Pages

Scroll/Zoom	100%

Fabricant	MITSUBISHI [Mitsubishi Electric Semiconductor]

Site Internet	http://www.mitsubishichips.com

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Mitsubishi microcomputers

M16C / 62T Group

SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

Bus Control

(8) BCLK output

The user can choose the BCLK output by use of bit 7 of processor mode register 0 (000416) (Note).

When set to “1”, the output floating.

Note: Before attempting to change the contents of the processor mode register 0, set bit 1 of the protect

(7) External bus status when the internal area is accessed

Table 1.12.6 shows the external bus status when the internal area is accessed.

Table 1.12.6. External bus status when the internal area is accessed

Item

SFR accessed

Internal ROM/RAM accessed

Address bus

Address output

Maintain status before accessed

address of external area

Data bus

When read

Floating

When write

Output data

Undefined

RD, WR, WRL, WRH

RD, WR, WRL, WRH output

Output "H"

BHE

BHE output

Maintain status before accessed

status of external area

Output "H"

ALE

Output "L"

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Note 1: In M30623(80-pin package), CS signals have no corresponding external pin.

M30622ECTFP Fiches technique(PDF) 37 Page - Mitsubishi Electric Semiconductor