em78p468n ELAN Microelectronics Corp, em78p468n Datasheet - Page 9

• Manufacturer Part Number: em78p468n
• Description: 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

4
Product Specification (V1.6) 12.31.2007
(This specification is subject to change without further notice)
Block Diagram
P80
P81
P82
P83
P84
P85
P86
P87
P70
P71
P72
P73
P74
P75
P76
P77
P60
P61
P62
P63
P64
P65
P66
P67
P50
P51
P52
P53
P54
P55
P56
P57
P8
P7
P6
P5
Input Pin
Output Pin
Input/Output Pin
Digital I/O Pin/LCD Output Pin
LCD Output Pin
ACC
ALU
Instruction
Instruction
Register
Decoder
ROM
R3 (Status
Reg.)
Fig. 4 System Block Diagram
8-level stack
Interrupt
Register
Interrupt
Ext INT
Control
(13-bit)
Circuit
PC
R4
PLL
Generation
Oscillation
Mux.
Crystal
RAM
Rese
t
RC
(Timer 1,2)
PWM1/IR
CNTR 1
CNTR 2
WDT
LCD
TCC
8-Bit Microcontroller
EM78P468N/L
CNTR2
PWM
TCC
CNTR1
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