The XC886/888 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 – 12 Kbytes of Boot ROM – 256 bytes of RAM – 1.5 Kbytes of XRAM – 24/32 Kbytes of Flash; or 24/32 Kbytes of ROM, with additional 4 Kbytes of Flash (includes memory protection strategy) • I/O port supply at 3.3 V or 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 – PLL loss-of-lock 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) • Six ports – Up to 48 pins as digital I/O – 8 pins as digital/analog 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) • Multiplication/Division Unit for arithmetic operations (MDU) • Software libraries to support floating point and MDU calculations • CORDIC Coprocessor for computation of trigonometric, hyperbolic and linear functions • MultiCAN with 2 nodes, 32 message objects • Capture/compare unit for PWM signal generation (CCU6) • Two full-duplex serial interfaces (UART and UART1) • Synchronous serial channel (SSC) • On-chip debug support – 1 Kbyte of monitor ROM (part of the 12-Kbyte Boot ROM) – 64 bytes of monitor RAM
