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EM78P312N
8-Bit Microcontroller
Product Specification (V1.0) 10.03.2006
• 3
(This specification is subject to change without further notice)
5 Function Description
5.1 Functional Block Diagram
ROM
R3
Status Reg.
ACC
Instruction
Decoder
Instruction
Register
ALU
PC
Interrupt
Circuit
8-level stack
(13 bit)
Interrupt
Control
Register
Oscillation
Generation
RAM
Mux
.
Ext.
OSC.
R4
Ext.
RC
Start-up
Timer
WDT
TC2
TC3
TC4
UART
SPI
TCC
TBKTC
ADC
Ain 0~7
Sin Sout
SCK
TCC
TC3
TC2
Ext INT0
Reset
TX RX
TC4
Keytone
Ext INT3Ext INT1 Ext INT5
P9
P90
P97
P96
P95
P94
P93
P92
P91
P8
P80
P81
P7
P70
P77
P76
P75
P74
P73
P72
P71
P6
P60
P67
P66
P65
P64
P63
P62
P61
Fig. 5-1 Functional Block Diagram