7220 datasheet(294/303 Pages) RENESAS

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7220 Group User’s Manual

APPENDIX

6.11 Mask ROM ordering method

6-75

GZZ–SH10–46B <5ZA0 >

SERIES MELPS 740 MASK ROM CONFIRMATION FORM

SINGLE-CHIP MICROCOMPUTER M37221MA-XXXSP

MITSUBISHI ELECTRIC

‘M’ =

‘3’ = 33

‘7’ = 37

‘2’ = 32

‘1’ = 31

‘M’ = 4D

‘A’ = 41

000016

000116

000216

000316

000416

000516

000616

000716

Address

‘–’ =

000816

000916

000A16

000B16

000C16

000D16

000E16

000F16

Address

Addresses 0000 16 to 000F16 store the product name, and addresses 10000 16 to 11FFF16 store the character pattern.

If the name of the product contained in the EPROMs does not match the name on the mask ROM confirmation form,

the ROM processing is disabled. Write the data correctly.

Inputting the name of the product with the ASCII code

ASCII codes ‘M37221MA-’ are listed on the right.

The addresses and data are in hexadecimal notation.

Inputting the character ROM

Input the character ROM data by dividing it into character ROM1 and character ROM2. For the character ROM data,

see the next page and on.

Writing the product name and character ROM data onto EPROMs

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