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EM78P447N
8-Bit Microcontroller with OTP ROM
8 •
Product Specification (V1.1) 03.30.2005
(This specification is subject to change without further notice)
All instruction are single instruction cycle (fclk/2 or fclk/4) except for the instruction
that would change the contents of R2. Such instruction will need one more
instruction cycle.
A7 ~ A0
On-chip Program
Memory
Hardware Vector
User Memory
Space
Software Vector
Reset Vector
A9 A8A11 A10
Stack Level 1
Stack Level 3
Stack Level 2
Stack Level 4
Stack Level 5
CALL
00 PAGE0 0000~03FF
01 PAGE1 0400~07FF
10 PAGE2 0800~0BFF
11 PAGE3 0C00~0FFF
R3
RET
RETL
RETI
Fig. 3 Program Counter Organization