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m o 4Bit Single Chip Microcontroller .c 4U t e DESCRIPTION e h is a 4-bit single chip microThe DMC42C2008 S a 8K bytes ROM, and is manufactured computer with t with CMOS technology. a silicon gate The DMC42C2008 includes peripherals such as 8-bit D . Timer/Event Counters, 4-bit A/D Converter, 14-bit w 8-bit PWM, 6-bit PWM, Watchdog Timer, 4-ch PWM, w External Interrupts and OSD controller.
enhancements and instructions that are necessary to make it a powerful and cost effective controller for applications requiring up to 64K bytes of programmable memory.
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DMC42C2008
FEATURE
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
PIN CONFIGURATION
PC.0/PWM14 1 P8.3 P0.3/INT3 P0.2/INT2 P0.1/INT1 P0.0/INT0 XI XO RESETB P8.2 VSS P8.1 P8.0 VDD P2.3 P2.2 P2.0 P2.1 OSCIN 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
40 39 38 37
PC.1/PWM60 PC.2/PWM61 PC.3/PWM62 PWMOTB/80 PWMOTB/81 PWMOTB/82 P3.0 P3.1 P3.2 P3.3 P1.0 P1.1 P1.2 P1.3
OSCOUT 20
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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
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VBLNKPAD VBPAD P6.1/VGPAD P6.0/VRPAD VSYNCBP HSYNCBP
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4Bit Single Chip Microcontroller
DMC42C2008
4 Bit A/D Converter Programmable Comparator Input AFC Input Signal Detection Circuit PWM - 14 Bits PWM Output x 1Ch - 8 Bits PWM Output x 3Ch - 6 Bits PWM Output x 3Ch 29 I/O Pins - CMOS I/O Pins : 22 (Digital CMOS Levels Schmitt Triggered) - PWM Pins : 7
Power saving mode - STOP : Main clock, CPU clock stop - STBY : Only CPU clock stop Main clock operation Package : 40 DIP
OSD CONTROLLER SPEC.
Character ROM ; 12 x 16 x 96 bits Video RAM ; 120 x 10 Bits OSD Clock ; 4MHz ~ 7MHz Character Number ; 96 Display Capacity ; 20 Columns x 6 Lines (120 Character) Character Size ; 16 Kinds (4 x 4 Kinds) - Horizontal 1T, 2T, 3T, 4T/Dots - Vertical 1H, 2H, 3H, 4H/Dots Character Color ; 8 Colors Black, Blue, Green, Red, Magenta, Yellow, White, Cyan Display Mode ; 3 Modes Character, Fringe, Background Background Color ; 8 Colors - Character Background Area Mode - All TV Display Area Mode OSD Oscillator Control Modes ; (Always Oscillate, Oscillates Only in the Display Per.