User Manual

DSH, Datasheet 903501205 May 1, 2003
Zensys A/S ZM1220 Z-Wave Module Page 11 of 15
CONFIDENTIAL
4.9 MCU Specification
MCU Description
MCU Type Optimized 8-bit 8051 MCU core (4 clock cycles per instruction), See [1].
MCU speed 7.376974 MHz
Flash 32kbyte. Programmed through the SPI interface.
SRAM 2kbyte
SRAM (CPU) 128 byte
MCU Peripherals
10-bit ADC, UART, SPI, 8 bit timer, 2x16 bit timer one with PWM mode,
watch dog timer, Power-on Reset/Brown-Out Detector.
Interrupt sources Internal and external.
Table 3 MCU Specifications
4.10 ZW0102 Single Chip Peripherals
Peripherals Description
Crystal
System Clock: 7.376974 MHz, ±8ppm@25°C, ±8ppm@-10°C to +85°C,
3ppm aging per year.
Real-Time Clock: 32.768kHz
DC/DC circuit
3.3V±2%, 100mA Low Drop-out Voltage Regulator
Push button Tiny SMD
Optional Peripherals DC/DC converter, Push button, EEPROM and RTC crystal
Table 4 MCU external peripherals
4.11 RF Specification
RF Description
RF Data rate 9.6 kbps
RF frequency (center
frequency)
868.42 MHz EU ZM1220
908.42 MHz US ZM1220
Modulation frequency
Center frequency ± 20kHz
Typical RF output power Optimized for (PCB antenna):
US: FCC Part 15
ERC 70-03 on SRD
Typical RF receiver
sensitivity
-94dBm
Range (typical) Indoor >30 meters line of sight, in unobstructed environment.
Outdoor > 60 meters line of sight
Modulation Frequency Shift Keying (FSK)
Signal coding Manchester Encoded
RF regulatory Model EU ZM1220: R&TTE Directive 1999/5/EC, EN 300 220-3/2000
Model US ZM1220: FCC Part 15, April 16 1999
Table 5 RF Specifications