CHAPTER 1 OVERVIEW
■ UART
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UART full-duplex double buffer
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5 channels, (MB91F353A/351A/352A/353A: 4 channels)
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Parity or no parity can be selected.
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Either asynchronous (start-stop synchronization) or CLK synchronous communication can be selected.
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Built-in timer for dedicated baud rates
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An external clock can be used as the transfer clock.
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Plentiful error detection functions (parity, frame, overrun)
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115 kbps supported
■ SIO
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8-bit data serial transfer
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3 channels, (MB91F353A/351A/352A/353A: 2 channels)
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A shift clock can be selected from three internal types and one external type.
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The shift direction can be switched between LSB and MSB.
■ Interrupt Controller
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Total number of external interrupts: 17
(MB91F353A/351A/352A/353A: (9)) [One non-maskable interrupt pin and 16 (8) ordinary
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Interrupts from internal peripherals
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Priority level can be defined as programmable (16 levels) except for the unmaskable pin
■ D/A Converter
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8-bit resolution: 3 channels (MB91F353A/351A/352A/353A: 2 channels)
■ A/D Converter
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10-bit resolution: 12 channels (MB91F353A/351A/352A/353A: 8 channels)
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Serial-parallel conversion type
Conversion time: About 1.48 µs
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Conversion modes (single conversion mode and continuous conversion mode)
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Activation sources (software, external trigger, and peripheral interrupt)
■ Other Interval Timers and Counters
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8/16-bit up/down counter
Note: The MB91F353A/351A/352A/353A supports only an 8-bit up/down counter.
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16-bit timer (U-TIMER), 5 channels, (MB91F353A/351A/352A/353A: 4 channels)
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Watchdog timer
4
interrupt pins that can be used for wakeup in stop mode.]