7220 Datasheet, PDF (285/303 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

APPENDIX
6.11 Mask ROM ordering method
GZZ–SH10–10B <59B0 >
740 FAMILY MASK ROM CONFIRMATION FORM
SINGLE-CHIP MICROCOMPUTER M37221M4-XXXSP
MITSUBISHI ELECTRIC
Writing the product name and character ROM data onto EPROMs
Addresses 000016 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.
1. Inputting the name of the product with the ASCII code
ASCII codes ‘M37221M4-’ are listed on the right.
The addresses and data are in hexadecimal notation.
Address
000016
000116
000216
000316
000416
000516
000616
000716
‘M’ = 4 D 16
‘3’ = 3 3 16
‘7’ = 3 7 16
‘2’ = 3 2 ₁₆
‘2’ = 3 2 16
‘1’ ⁼ 3 1 16
‘M’ = 4 D 16
‘4’ = 3 4 16
Address
000816
000916
000A16
000B16
000C16
000D16
000E16
000F16
‘–’ = 2 D 16
F F 16
F F 16
F F 16
F F 16
F F 16
F F 16
F F 16
2. 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.
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7220 Group User’s Manual