MITSUBISHI MICROCOMPUTERS
3850 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
GZZ-SH53-11B<86A0>
740 FAMILY MASK ROM CONFIRMATION FORM
SINGLE-CHIP MICROCOMPUTER M38503M2-XXXSP/FP
MITSUBISHI ELECTRIC
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 000816 of EPROM.
EPROM type
27256
27512
The pseudo-command
*= $8000
.BYTE ‘M38503M2–’
*= $0000
.BYTE ‘M38503M2–’
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.
g 2. Mark specification
Mark specification must be submitted using the correct form for the package being ordered. Fill out the appropriate
mark specification form (42P4B for M38503M2-XXXSP, 42P2R-A for M38503M2-XXXFP) and attach it to the mask
ROM confirmation form.
g 3. Usage conditions
Please answer the following questions about usage for use in our product inspection :
(1) How will you use the XIN-XOUT oscillator?
Ceramic resonator
Quartz crystal
External clock input
Other (
)
At what frequency?
f(XIN) =
MHz
(2) Which function will you use the pins P21/XCIN and P20/XCOUT as P21 and P20, or XCIN and XCOUT ?
Ports P21 and P20 function
XCIN and XCOUT function (external resonator)
g 4. Comments
(2/2)
42