Summary of Features

The XC858 has the following features:

? High-performance XC800 Core

– compatible with standard 8051 processor

– two clocks per machine cycle architecture (for memory access without wait state)

– two data pointers

? On-chip memory

– 8 Kbytes of Boot ROM

– 256 bytes of RAM

– 3 Kbytes of XRAM

– 64/52/36 Kbytes of Flash; (includes memory protection strategy)

? I/O port supply at 5.0 V and core logic supply at 2.5 V (generated by embedded voltage regulator)

? Power-on reset generation

? Brownout detection for core logic supply

? On-chip OSC and PLL for clock generation

– Loss-of-Clock detection

? Power saving modes

– slow-down mode

– idle mode

– power-down mode with wake-up capability via RXD or EXINT0

– clock gating control to each peripheral

? Programmable 16-bit Watchdog Timer (WDT)

? Five ports

– Up to 40 pins as digital I/O

– 8 dedicated analog inputs used as A/D converter input

? 8-channel, 10-bit ADC

? Four 16-bit timers

– Timer 0 and Timer 1 (T0 and T1)

– Timer 2 and Timer 21 (T2 and T21)

? MultiCAN with 2 nodes, 32 message objects

? Timer 2 Capture/compare unit for PWM signal generation (T2CCU)

? Two full-duplex serial interfaces (UART and UART1)

? Synchronous serial channel (SSC)

? On-chip debug support

– 1 Kbyte of monitor ROM (part of the 8-Kbyte Boot ROM)

– 64 bytes of monitor RAM

? PG-LQFP-64 pin package

? Temperature range TA:

– SAF (-40 to 85 °C)