EM78P341N/342N/343N
8-Bit Microprocessor with OTP ROM
4 Functional Block Diagram
Start-up
timer
Ext.
OSC. RC
Int.
Ext.
RC
PC
ROM
WDT
TCCA
TCCB
TCCA
TCCB
TCCC
Oscillation
Generation
8-level stack
(13 bit)
Instruction
Register
TCCC
IR out
P70
P71
Reset
Instruction
Decoder
Infrared
remote
control
circuit
P6
TCC
TCC
P60
Mux
P61
P62
P63
P64
P65
P66
P67
ALU
R4
LVD
LVR
RAM
Interrupt
control
register
R3 (Status
Reg.)
P5
ACC
P50
P51
P52
P53
P54
P55
P56
P57
Interrupt
circuit
Comparator
(CO) or OP
ADC
Cin+ Cin- CO
Ain0~3
Ext INT
Fig. 4-1 EM78P341N/342N/343N Functional Block Diagram
Product Specification (V1.0) 12.01.2006
(This specification is subject to change without further notice)
• 3
ELAN [ ELAN MICROELECTRONICS CORP ]
