P83CL781

INTEGRATED CIRCUITS DATA SHEET P83CL781; P83CL782 Low voltage 8-bit microcontrollers with UART and I2C-bus Product specification Supersedes data of 1995 Jul 13 File under Integrated Circuits, IC20 1997 Mar 14 Philips Semiconductors Product specification Low voltage 8-bit microcontrollers with UART and I2C-bus CONTENTS 1 2 3 4 5 6 7 7.1 7.2 8 8.1 8.2 9 9.1 9.2 9.3 9.4 10 10.1 10.2 10.3 10.4 11 11.1 11.2 11.3 12 12.1 12.2 12.3 12.4 12.5 13 13.1 13.2 13.3 13.4 FEATURES GENERAL DESCRIPTION APPLICATIONS ORDERING INFORMATION BLOCK DIAGRAM FUNCTIONAL DIAGRAM PINNING INFORMATION Pinning Pin description FUNCTIONAL DESCRIPTION OVERVIEW General CPU timing MEMORY ORGANIZATION Program memory Data memory Special Function Registers Addressing I/O FACILITIES Ports Port options Port 0 options SET/RESET options TIMER/EVENT COUNTERS Timer 0 and Timer 1 Timer T2 Timer/Counter 2 Control Register (T2CON) REDUCED POWER MODES Idle mode Power-down mode Wake-up from Power-down mode Status of external pins Power Control Register (PCON) I2C-BUS SERIAL I/O Serial Control Register (S1CON) Serial Status Register (S1STA) Data Shift Register (S1DAT) Address Register (S1ADR) 14.3 15 15.1 15.2 15.3 16 17 17.1 17.2 18 19 20 21 22 22.1 22.2 23 24 24.1 24.2 24.3 25 26 27 14 14.1 14.2 P83CL781; P83CL782 STANDARD SERIAL INTERFACE SIO0: UART Multiprocessor communications Serial Port Control and Status Register (S0CON) Baud rates INTERRUPT SYSTEM External interrupts INT2 to INT9 Interrupt priority Interrupt regi...