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EM73P982 Datasheet(PDF) 14 Page - ELAN Microelectronics Corp

Part # EM73P982
Description  4-BIT MICROCONTROLLER
PDF  41 Pages
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Manufacturer  EMC [ELAN Microelectronics Corp]
Direct Link  http://www.emc.com.tw
Logo EMC - ELAN Microelectronics Corp

EM73P982 Datasheet(HTML) 14 Page - ELAN Microelectronics Corp

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* This specification are subject to be changed without notice.
EM73P982
EM73P982
EM73P982
EM73P982
EM73P982
4-BIT MICROCONTROLLER
4-BIT MICROCONTROLLER
4-BIT MICROCONTROLLER
4-BIT MICROCONTROLLER
4-BIT MICROCONTROLLER
12.25.2001
PC 0
0
aaaaaaaaaa
a
RET
RET
RET
RET
RET
Object code: 0100 1111
Condition: PC
← STACK[SP]; SP + 1
PC
The return address stored in stack
RT I
RT I
RT I
RT I
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:
(3) Interrupt acceptance operation:
(3) Interrupt acceptance operation:
(3) Interrupt acceptance operation:
(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
INT0
INT0
INT0
INT0 (External interrupt from P8.2)
PC 00000000000
1
0
TRGA
TRGA
TRGA
TRGA
TRGA (Timer A overflow interrupt)
PC 0000000000
1
1
0
TRGB
TRGB
TRGB
TRGB
TRGB (Time B overflow interrupt)
PC 00000000
0
1
0
0
0
TBI
TBI
TBI
TBI
TBI (Time base interrupt)
PC 00000000
0
1
0
1
0
SPI
SPI
SPI
SPI
SPI (Speech ending interrupt)
PC 00000000
0
1
1
0
0
(4) Reset operation:
(4) Reset operation:
(4) Reset operation:
(4) Reset operation:
(4) Reset operation:
PC 00000000000
0
0
(5) Other operations:
(5) Other operations:
(5) Other operations:
(5) Other operations:
(5) Other operations:
For 1-byte instruction execution: PC + 1
For 2-byte instruction execution: PC + 2
For 3-byte instruction execution: PC + 3



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