IRMCF312_15 Datasheet, PDF (6/35 Pages) International Rectifier – Dual Channel Sensorless Motor Control IC

IRMCF312
o Peak detect
o Transition
o Multiply-divide (signed and unsigned)
o Divide (signed and unsigned)
o Adder
o Subtractor
o Comparator
o Counter
o Accumulator
o Switch
o Shift
o ATAN (arc tangent)
o Function block (any curve fitting, nonlinear function)
o 16-bit wide Logic operations (AND, OR, XOR, NOT, NEGATE)
o MCE^TM program and data memory (6K byte). ^{Note 1}
o MCE^TM control sequencer
• 8051 microcontroller
o Three 16-bit timer/counters
o 16-bit periodic timer
o 16-bit analog watchdog timer
o 16-bit capture timer
o Up to 36 discrete I/Os
o Eleven-channel 12-bit A/D
ƒ Five buffered channels (0 – 1.2V input)
ƒ Six unbuffered channels (0 – 1.2V input)
o JTAG port (4 pins)
o Up to three channels of analog output (8-bit PWM)
o Two UART
o I²C/SPI port
o 48K byte program RAM loaded from external EEPROM
o 2K byte data RAM. ^{Note 1}
Note 1: Total size of RAM is 8K byte including MCE program, MCE data, and
8051 data. Different sizes can be allocated depending on applications.
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