EM73963A
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
PC 0 0 a a a a a a a a a a a
RET
Object code: 0100 1111
Condition: PC ← STACK[SP]; SP + 1
PC The return address stored in stack
RT I
Object code: 0100 1101
Condition : FLAG. PC ← STACK[SP]; EI ← 1; SP + 1
PC The return address stored in stack
(3) Interrupt acceptance operation:
When an interrupt is accepted, the original PC is pushed into stack and interrupt vector will be loaded into
PC,The interrupt vectors are as follows :
INT0 (External interrupt from P8.2)
PC 0 0 0 0 0 0 0 0 0 0 0 1 0
TRGA (Timer A overflow interrupt)
PC 0 0 0 0 0 0 0 0 0 0 1 1 0
TRGB (Time B overflow interrupt)
PC 0 0 0 0 0 0 0 0 0 1 0 0 0
TBI (Time base interrupt)
PC 0 0 0 0 0 0 0 0 0 1 0 1 0
INT1 (External interrupt from P8.0)
PC 0 0 0 0 0 0 0 0 0 1 1 0 0
(4) Reset operation:
PC 0 0 0 0 0 0 0 0 0 0 0 0 0
(5) Other operations:
For 1-byte instruction execution: PC + 1
For 2-byte instruction execution: PC + 2
For 3-byte instruction execution: PC + 3
* This specification are subject to be changed without notice.
6.14.2001 9