BAE0911 - Programmable 22 i/o 1-Wire slave device

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BAE0911 - Programmable 22 i/o 1-Wire slave device

BAE0911 - Programmable 22 i/o 1-Wire slave device

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Description

This versatile 28-pin SOIC chip offers a 1-wire slave with many facilities allowing the use of the 1-wire bus to control a variety of peripherals. It is fully supported by the open source 1-wire file system (OWFS) software. 

Main Features

  • 22 i/o pins allows mixed functions selectable among the pins
  • 22 pio TTL digital input/output with changed latch bit
  • 6 up/down 32bit encoders
  • Four 16 bit PWM (pulse width modulation) from 0.1Hz to 10MHz
  • Four 16 bit capture input shared with PWM
  • 16 ADC inputs at 10 bit resolution (0 to 5V range)
  • 6 interrupt based 32bit counters (up to 5KHz)
  • 12 additional 32bit counters (up to 100Hz)
  • One analog comparator with output on compare

Extended connectivity

  • One buffered TTL serial port (RX/TX) baud rate from 50 to 1000.000 bauds
  • I²C master interface up to 1Mbit/s
  • SPI master interface (aka four wires) up to 1MHz
  • Standard speed 1-Wire slave interface with unique ROM serial number

Advanced features

  • Firmware upgradable via 1-wire® bus.
  • The chip firmware is contained in FLASH and can be upgraded directly from 1-wire bus.
  • Automation Engine: allows to embed Basic-like programs for autonomous behavior
  • Calibrated 32 bit counter clock (typical deviation 0.5%)
  • Integrated watchdog monitoring with automatic reset
  • All PIO has configurable internal pull-up resistor (PIO0..PIO7 have also pull-down)
  • 6 fast counters are configurable on rising/falling edge
  • 12 slow counters on falling edge only
  • 32Kbit of user flash storage (8 pages of 512 bytes)
  • 92 bytes of user register
  • 4x 92 bytes of RAM dedicated for Automation user programs
  • ADC is working in continuous conversion mode (no start conversion command, no delays)
  • 32 distinct countdown registers for timer behavior in AE
  • SDcard support up to 2GB for direct access to 512bytes sectors

Compatibility with 1-wire protocol

  • Standard speed operation: protocol implemented with low latency interrupts in background.
  • Supports every standard ROM commands: read rom, match rom, search rom, skip rom, resume rom and conditional search
  • Unique serial number
  • Family code 0xFC: with extended identification commands: read_type & read_version.
  • Control functions: see FUNCTION COMMANDS page in the manual.

Physical characteristics

  • Single chip microcontroller based solution in an 28-pin SOIC.
  • 5.0V supply voltage, 10mA typical consumption
  • 40MHz operation
  • Based on Freescale MC9S08SH16CWL microcontroller

 

Additional Information

Delivery Normally delivered from stock
SKU hc00346
Technical Information

Technical manual available here.

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