EM78P257
OTP ROM
R3
000H
001H
Reset Vector
Software Interrupt Vector
A10
A9 A8
A7
~
A0
CALL
RET
RETL
RETI
On-chip Program
Memory
3ECH
~
3FEH
Hardware Interrupt Vector
00 PAGE0 0000~03FF
01 PAGE1 0400~07FF
Stack Level 1
Stack Level 2
Stack Level 3
Stack Level 4
Stack Level 5
Stack Level 6
Stack Level 7
Stack Level 8
7FFH
Fig. 4 Program counter organization
This specification is subject to change without prior notice.
12
07.27.2004 (V1.4)