M38503MXH Datasheet, PDF (47/86 Pages) Mitsubishi Electric Semiconductor – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

ID Code Check Function
Use this function in standard serial I/O mode. When the contents of
the flash memory are not blank, the ID code sent from the peripheral
unit is compared with the ID code written in the flash memory to see
if they match. If the ID codes do not match, the commands sent from
the peripheral unit are not accepted. The ID code consists of 8-bit
data, the areas of which are FFD416 to FFDA16. Write a program
which has had the ID code preset at these addresses to the flash
memory.
Address
FFD416
FFD516
FFD616
FFD716
FFD816
FFD916
FFDA16
FFDB16
ID1
ID2
ID3
ID4
ID5
ID6
ID7
ROM cord Protect control
Interrupt vector area
Fig. 51 ID code store addresses
MITSUBISHI MICROCOMPUTERS
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
47