IBM EM78P447N manual Call RET Retl Reti, Fffh

EM78P447N

8-Bit Microcontroller with OTP ROM

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.

R3
A11 A10 A9 A8	A7	~	A0
	CALL
	RET
	RETL
	RETI
00 PAGE0 0000~03FF		Stack Level 1
01 PAGE1 0400~07FF		Stack Level 2
10 PAGE2 0800~0BFF		Stack Level 3
11 PAGE3 0C00~0FFF		Stack Level 4
		Stack Level 5

Hardware Vector

Software Vector

On-chip Program

Memory

Reset Vector

000H

001H

002H

User Memory

Space

FFFH

Fig. 3 Program Counter Organization

8 • Product Specification (V1.1) 03.30.2005

(This specification is subject to change without further notice)