2
4Bit Single Chip Microcontroller
DMC42C1106
FEATURE
Memory mapped I/O
Program memory : 6144 x 10bits
Data memory : 384 x 4bits
Instructions
- Various bit manipulation
- 8-bit data operation
- 7-bit relative branch
- 1 byte absolute call
Instruction cycle times
- Main ( XI = 4.19MHz )
. 15.3 us ( XI/64 = 65.5KHz )
. 1.91 us ( XI/8 = 524.0KHz )
. 0.95 us ( XI/4 = 1.05MHz )
- Sub ( XTI = 32.768KHz )
. 122 us ( XTI/4 = 8.19KHz )
4 Register Bank
General register : 8 x 4-bit respectively
Accumulator
- Bit Accumulator (CY), 4 bit Accumulator (A),
8 bit Accumulator (XA)
Multiple vectored interrupt source
- External interrupt : 3
- Internal interrupt : 6
8-bit serial communication interface
- External / Internal clock selection
- Mode : Transmit ·Receive
Receive only
Clock continuous
LCD controller/driver
- selectable number of segments (21)
- Display mode selection
· Static
· 1/2 duty (1/2 bias)
· 1/3 duty (1/2 bias)
· 1/3 duty (1/3 bias)
· 1/4 duty (1/3 bias)
50 I/O Pins
- LCD driver output pins : 25
. Segment ouput pins : 9
. Segment CMOS outputpins : 12
. Common ounput pins : 4
- CMOS input/output pins : 25
Power saving mode
- STOP : Main clock, CPU clock stop
- STBY : Only CPU clock stop
Main clock operation
Package : 64 QFP, 64 SDIP
APPLICATION
Watch timer
- fast mode : 3.91 msec
- normal mode : 0.5 sec
- buzzer output : 1, 2, 4 KHz
VTR, Camera, Rice Cooker, Telephone
Blood Pressure Gauge, CD Player
Basic interval timer
- 8 kinds of period
- Used stabilization wait timer to wake up Stop mode
Two 8-bit timer / event counters
DAEWOO [ DAEWOO SEMICONDUCTOR ]
