EM73P362 Datasheet, PDF (8/44 Pages) ELAN Microelectronics Corp – 4-BIT MICRO-CONTROLLER FOR LCD PRODUCT

EM73P362
4-BIT MICRO-CONTROLLER FOR LCD PRODUCT
SF=0 ; PC ← PC + 2 (branch condition not satisfied)
PC
Original PC value + 2
(2) Subroutine instruction:
SCALL a
Object code: 1110 nnnn
Condition : PC ← a ; a=8n+6 ; n=1..15 ; a=86h, n=0
PC 0 0 0 0 a a a a a a a a
LCALL a
Object code: 0100 0aaa aaaa aaaa
Condition: PC ← a
PC 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 following:
INT0 (External interrupt from P0.2)
PC 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 1 1 0
TRGB (Time B overflow interrupt)
PC 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 1 0 1 0
* This specification are subject to be changed without notice.
11.1.2001 8