DMC42C2008 Datasheet, PDF (1/22 Pages) Daewoo Semiconductor – 4Bit Single Chip Microcontroller

4Bit Single Chip Microcontroller
1
DMC42C2008
DESCRIPTION
FEATURE
The DMC42C2008 is a 4-bit single chip micro-
computer with 8K bytes ROM, and is manufactured
with CMOS silicon gate technology.
The DMC42C2008 includes peripherals such as 8-bit
Timer/Event Counters, 4-bit A/D Converter, 14-bit
PWM, 8-bit PWM, 6-bit PWM, Watchdog Timer, 4-ch
External Interrupts and OSD controller.
It provides the hardware features, architectural
enhancements and instructions that are necessary
to make it a powerful and cost effective controller
for applications requiring up to 64K bytes of program-
mable memory.
PIN CONFIGURATION
Memory Mapped I/O
Program Memory : 8192 x 10 bits
Data Memory : 512 x 4 bits
Instructions
- Various Bit Manipulation
- 8 bit Data Transfer, Compare, Arithmatic
- 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 )
4 Register Bank
PC.0/PWM14 1
40 PC.1/PWM60
P8.3
2
39 PC.2/PWM61
P0.3/INT3 3
38 PC.3/PWM62
P0.2/INT2 4
P0.1/INT1 5
37 PWMOTB/80
D
36 PWMOTB/81
P0.0/INT0 6
XI
7
XO
8
RESETB 9
M
35 PWMOTB/82
C
34 P3.0
33 P3.1
4
32 P3.2
P8.2
10
2
31 P3.3
VSS
11
C
30 P1.0
P8.1
12
P8.0
13
2
29 P1.1
28 P1.2
VDD
14
0
27 P1.3
P2.3
15
0
26 VBLNKPAD
P2.2
16
8
25 VBPAD
P2.0
17
24 P6.1/VGPAD
P2.1
18
23 P6.0/VRPAD
OSCIN 19
22 VSYNCBP
OSCOUT 20
21 HSYNCBP
General Register
- 8 x 4 bit x 4 Banks
Accumulator
- Bit Accumulator (CY), 4 bit Accumulator (A),
8 bit Accumulator (XA)
Multiple Vectored Interrupt Source
- External Interrupts : 4
- Internal Interrupts : 3
- Vsync Interrupts : 1
Watch timer
- fast mode : 3.91 msec
- normal mode : 0.5 sec
- buzzer output : 1, 2, 4 KHz
Basic interval timer
- 8 kinds of period
- Used stabilization wait timer to wake up
Stop mode
Two 8-bit timer / event counters