Single-Chip 8-Bit Microcontroller with CAN Controller

• Full static 80C51 Central Processing Unit available as OTP, ROM and ROMless
• 16 Kbytes internal Program Memory expandable externally to 64 Kbytes
• 512 bytes on-chip Data RAM expandable externally to 64 Kbytes
• Three 16-bit timers/counters T0, T1 (standard 80C51) and additional T2 (capture and compare)
• 10-bit ADC with 6 multiplexed analog inputs with fast 8-bit ADC option
• Two 8-bit resolution, Pulse Width Modulated outputs
• 32 I/O port pins in the standard 80C51 pinout
• I²C-bus serial I/O port with byte oriented controller and target functions
• On-chip Watchdog Timer T3
• Extended temperature range: -40 to +85 Cel
• Accelerated (prescaler 1:1) instruction cycle time 500 ns @ 12 MHz
• Operation voltage range: 5 V +- 5 pct
• Security bits:
  • ROM version has 2 bits
  • OTP/EPROM version has 3 bits
• 32 bytes Encryption array
• 4 level priority interrupt, 15 interrupt sources
• Full-duplex enhanced UART with programmable Baudrate Generator
• Power Control Modes:
  • Clock can be stopped and resumed
  • Idle Mode
  • Power-down Mode
• ADC active in Idle Mode
• Second DPTR register
• ALE inhibit for EMI reduction
• Programmable I/O port pins (pseudo bi-directional, push-pull, high impedance, open drain)
• Wake-up from Power-down by external interrupts
• Software reset bit (AUXR1.5)
• Low active reset pin
• Power-on detect reset
• Once mode

CAN Related Features of the 8xC591

• CAN 2.0B active controller, supporting 11-bit Standard and 29-bit Extended indentifiers
• 1 Mbit/s CAN bus speed with 8 MHz clock achievable
• 64 byte receive FIFO (can capture sequential Data Frames from the same source as required by the Transport Layer of higher protocols such as DeviceNet, CANopen and OSEK)
• 13 byte transmit buffer
• Enhanced PeliCAN core (from the SJA1000 stand-alone CAN2.0B controller)

PELICAN FEATURES

• Four independently configurable Screeners (Acceptance Filters)
• Each Screener has two 32-bit specifies:
  • 32-bit Match and
  • 32-bit Mask
• 32-bits of Mask per Screener allows unique Group addressing per Screener
• Higher layer protocols especially supported in Standard CAN format with:
  • Up to four, 11-bit ID Screeners that also Screen the two (2) Data Bytes
  • i.e., Data Frames are Screened by the CAN ID and by Data Byte content
• Up to eight, 11-bit ID Screeners half of which also Screen the first Data Byte
• All Screeners are changeable "on the fly"
• Listen Only Mode, Self Test Mode
• Error Code Capture, Arbitration Lost Capture, readable Error Counters

Errata Sheet