Processor Features - OLIMEX MOD-ZIGBEE User Manual

PROCESSOR FEATURES

MOD-ZIGBEE use 28-pin Flash Microcontroller with nano Watt XLP Technology –
PIC18F26K20, with these features:
−
High-Performance RISC CPU:
− C Compiler Optimized Architecture:
−
Optional extended instruction set designed to optimize re-
entrant code
− 1024 bytes Data EEPROM
− 64 Kbytes Linear Program Memory Addressing
− 3936 bytes Linear Data Memory Addressing
− Up to 16 MIPS Operation
− 16-bit Wide Instructions, 8-bit Wide Data Path
− Priority Levels for Interrupts
− 31-Level, Software Accessible Hardware Stack
− 8 x 8 Single-Cycle Hardware Multiplier
− Flexible Oscillator Structure:
− Precision 16 MHz Internal Oscillator Block:
−
Factory calibrated to ± 1%
−
Software selectable frequencies range of 31 kHz to 16 MHz
−
64 MHz performance available using PLL – no external
components required
− Four Crystal modes up to 64 MHz
Two External Clock modes up to 64 MHz
−
4X Phase Lock Loop (PLL)
−
Secondary Oscillator using Timer1 @ 32 kHz
−
Fail-Safe Clock Monitor:
−
− Allows for safe shutdown if peripheral clock stops
Two-Speed Oscillator Start-up
−
Special Microcontroller Features:
−
Operating Voltage Range: 1.8V to 3.6V
−
Self-Programmable under Software Control
−
Programmable 16-Level High/Low-Voltage Detection (HLVD)
−
module:
Interrupt on High/Low-Voltage Detection
−
Programmable Brown-out Reset (BOR):
−
With software enable option
−
Extended Watchdog Timer (WDT):
−
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