M38B53M4-059FP datasheet(318/355 Pages) MITSUBISHI

318 / 355 page

3-70

APPENDIX

38B5 Group User’s Manual

3.6 Mask ROM confirmation form

740 FAMILY MASK ROM CONFIRMATION FORM

SINGLE-CHIP MICROCOMPUTER M38B57MCH-

XXXFP

MITSUBISHI ELECTRIC

GZZ-SH54-20B<88A1>

Mask ROM number

We recommend the use of the following pseudo-command to set the start address of the assembler source program be-

cause ASCII codes of the product name are written to addresses 000016 to 000916 of EPROM.

EPROM type

The pseudo-command

Note : If the name of the product written to the EPROMs does not match the name of the mask confirmation form, the ROM

will not be processed.

27512

$0000

.BYTE

‘M38B57MCH–’

(2/3)

g 2. Mask option specification

High-breakdown voltage ports P20 to P27 and P80 to P83 can be selected whether pull-down resistors are built-in or not

from among the following 8 types by the mask option.

Select built-in type of pull-down resistors from among the following A to G, P, and fill out the following certainly.

(Fill out the upper part of page 1/3 also.)

Set the data of the same option type name in EPROM specified address. (Set the ASCII code of A to G, P; 4116 to 4716,

5016.)

Set the following pseudo-command to the assembler source program.

EPROM type

The pseudo-command

27512

$0010

.BYTE

$XX

Option type

Connective port of pull-down resistor

(connected at “1” writing)

P20 P21 P22 P23 P24 P25 P26 P27 P80 P81 P82 P83

A ($41)

B ($42)

C ($43)

D ($44)

E ($45)

F ($46)

G ($47)

Option type

Fill out with any one of A to G, P.

M38B57MCH-XXXFP

P ($50)

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