MB91302ASLASHV301A datasheet(3/135 Pages) FUJI

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MB91301 Series

Instruction cache

• Size : 4 Kbytes

• 2-way set associative

• 128 blocks/way, 4 entries/block

• Lock function enables program code to be made cache-resident

• Areas not used for instruction cache can be used as instruction RAM

DMAC (DMA Controller)

• 5-channel (2-channel external-to-external)

• 3 transfer triggers : External pin, internal peripheral, software

• Capable of selecting an internal peripheral as a transfer source freely for each channel

• Addressing using 32-bit full addressing mode (increment, decrement, fixed)

• Transfer modes : Demand transfer, burst transfer, step transfer, or block transfer

• Supports fly-by transfer (between external I/O and memory)

• Selectable transfer data size : 8, 16, or 32-bit

Bit search module

• Searches words from MSB for position of first 1/0 bit value change

Reload Timers

• 16-bit timer : 3 channels

• Internal clock : 2 clock cycle resolution, divide by 2/8/32 selective

UART

• Full duplex, double buffer UART

• Independent 3 channels

• Data length : 7 bits to 9 bits (without parity) , 6 bits to 8 bits (with parity)

• Asynchronous (start-stop synchronized) or CLK-synchronous communications selectable

Multi-processor mode

• Built-in 16-bit timer (U-TIMER) as a baud rate generator to generate arbitrary baud rates

• External clock can be used as transfer clock

• Variety of error detection functions (parity, frame, overrun)

Interrupt controller

• External interrupt input : 1 non-maskable interrupt pin and 8 normal interrupt pins (INT0 to INT7)

• Internal internal resources : UART, DMAC, A/D, U-TIMER, Delay interrupt, I2C, Free-run timer, Input capture

• Programmable priorities (16 levels) for all interrupts except the non-maskable interrupt

10. A/D converter

• 10-bit resolution, 4 channels

• Successive approximation type, conversion time : 4.1

µs at 34 MHz

• Built-in sample and hold circuit

• Conversion modes : Single conversion mode, scan conversion mode and repeat conversion mode selectable

• Conversion triggers : Software, external trigger and built-in timer selectable

11. I2C* interface

• Internal 2-channels master/slave transmit/receive

• Internal arbitration function, clock synch function

12. Free-run timer

• 16 bit : 1channel

(Continued)

MB91302A/V301A Datasheet(PDF) 3 Page - Fuji Electric

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