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Preliminary Rev 1.4, 2012/01/19
CONTENTS
AMENDMENT HISTORY..................................................................................................... 2
FEATURES.......................................................................................................................... 5
BLOCK DIAGRAM .............................................................................................................. 7
PIN ASSIGNMENT .............................................................................................................. 8
PIN DESCRIPTION.............................................................................................................. 9
FUNCTIONAL DESCRIPTION .......................................................................................... 10
1. CPU Core ................................................................................................................... 10
1.1 Clock Scheme and Instruction Cycle................................................................... 10
1.2 Addressing Mode................................................................................................ 10
1.3 Programming Counter (PC) and Stack................................................................ 11
1.4 ALU and Working (W) Register........................................................................... 11
1.5 STATUS Register................................................................................................ 12
1.6 Interrupt............................................................................................................... 13
2. Chip Operation Mode.................................................................................................. 14
2.1 Reset................................................................................................................... 14
2.2 System Configuration Register (SYSCFG).......................................................... 15
2.3 PROM Re-use ROM ........................................................................................... 16
2.4 Power-Down Mode.............................................................................................. 16
2.5 Dual System Clock.............................................................................................. 17
2.6 Dual System Clock Modes Transition ................................................................. 18
3. Peripheral Functional Block........................................................................................ 20
3.1 Watchdog (WDT) / Wakeup (WKT) Timer........................................................... 20
3.2 Timer0: 8-bit Timer/Counter with Pre-scale (PSC).............................................. 21
3.3 Timer2: 15-bit Timer............................................................................................ 22
3.4 PWM0: 8-bit PWM............................................................................................... 22
3.5 PWM1: 8-bit PWM............................................................................................... 24
3.6 Analog Comparator............................................................................................. 25
3.7 System Clock Oscillator ...................................................................................... 26
4. I/O Port....................................................................................................................... 27
4.1 PA0-2.................................................................................................................. 27
4.2 PA3-6, PB0-7...................................................................................................... 28
4.3 PA7..................................................................................................................... 28
MEMORY MAP.................................................................................................................. 29
F-Plane........................................................................................................................... 29
R-Plane........................................................................................................................... 31
INSTRUCTION SET........................................................................................................... 33
ELECTRICAL CHARACTERISTICS ................................................................................. 45
