LC87F17C8A

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3

Mode 0 : Communication in single-master mode.

Mode 1 : 8-bit synchronous serial I/O (data MSB first)

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Full Duplex UART

 SCUART2

<1> Data length : 7/8 bits selectable

<2> Stop bits

: 1/2 bits selectable

<3> Parity bits

: None/even parity/odd parity selectable

<4> Baudrate

: 8/3 to 8192/3 tCYC

<5> LSB first/MSB first mode selectable

<6> Capable of Smart card interface

<7> 8-level receive FIFO buffer

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16-bit Cyclic Redundancy Check (CRC) Calculator

<1> User-programmable CRC polynomial equation

<2> 1 to 256 bytes can be specified

<3> LSB first/MSB first selectable

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AD Converter: 12 bits × 12 channels

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PWM: Variable frequency 12-bit PWM × 2 channels

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Infrared Remote Control Receiver Circuit

<1> Noise rejection function (noise filter time constant: Approx. 120

s when the 32.768 kHz crystal oscillator

is selected as the reference clock)

<2> Supports data encoding systems such as PPM (Pulse Position Modulation) and Manchester encoding.

<3> X'tal HOLD mode release function

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USB Interface

 Host Controller × 2 ports

<1> Supports Full-Speed (12 Mbps) and Low-Speed (1.5 Mbps) operation.

<2> Supports four transfer types (control transfer, bulk transfer, interrupt transfer, and isochronous transfer).

 Device Controller

<1> Supports Full-Speed operation.

<2> Supports up to 9 endpoints

Endpoint

EP0

EP1

EP2

EP3

EP4

EP5

EP6

EP7

EP8

Transfer

Type

Control



-

-

-

-

-

-

-

-

Bulk

-

















Interrupt

-

















Isochronous

-

















Max. payload

64

64

64

64

64

64

64

1023

1023

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Audio Interface

<2> Master clock

: 256 fs/384 fs

<3> Bit clock

: 48 fs/64 fs

<4> Data bit length : 16 bits/18 bits/20 bits/24 bits

<5> LSB first/MSB first selectable.

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Watchdog Timer

 Internal counter watchdog timer

<1> Capable of generating an internal reset on an overflow of the timer running on the low-speed RC

oscillator clock, or subclock.

<2> Operation in HALT/HOLD mode can be selected from among “continue count operation,” “suspend

operation,” and “retain the count value.”