LC87F7DC8A

No.A1156-3/26

High-speed Clock Counter

1) Can count clocks with a maximum clock rate of 20MHz (at a main clock of 10MHz).

2) Can generate output real-time.

SIO

• SIO0: 8-bit synchronous serial interface

1) LSB first/MSB first mode selectable

2) Built-in 8-bit baudrate generator (maximum transfer clock cycle = 4/3 tCYC)

3) Automatic continuous data transmission (1 to 256 bits specifiable in 1-bit units, suspension and resumption of

data transmission possible in 1-byte units)

• SIO1: 8-bit asynchronous/synchronous serial interface

Mode 0: Synchronous 8-bit serial I/O (2- or 3-wire configuration, 2 to 512 tCYC transfer clocks)

Mode 1: Asynchronous serial I/O (half-duplex, 8-data bits, 1-stop bit, 8 to 2048 tCYC baudrates)

Mode 2: Bus mode 1 (start bit, 8-data bits, 2 to 512 tCYC transfer clocks)

Mode 3: Bus mode 2 (start detect, 8-data bits, stop detect)

UART1

• Full duplex

• 7/8/9 bit data bits selectable

• 1 stop bit (2-bit in continuous data transmission)

• Built-in baudrate generator

UART2

• Full duplex

• 7/8/9 bit data bits selectable

• 1 stop bit (2-bit in continuous data transmission)

• Built-in baudrate generator

AD Converter: 12 bits

× 15 channels

PWM: Multi frequency 12-bit PWM

× 2 channels

Remote Control Receiver Circuit1

1) Noise rejection function

(Units of noise rejection filter: about 120

μs, when selecting a 32.768kHz crystal oscillator as a clock.)

2) Supporting reception formats with a guide-pulse of half-clock/clock/none.

3) Determines a end of reception by detecting a no-signal periods (No carrier).

(Supports same reception format with a different bit length.)

4) X’tal HOLD mode release function

Remote Control Receiver Circuit2

1) Noise rejection function

(Units of noise rejection filter: about 120

μs, when selecting a 32.768kHz crystal oscillator as a clock.)

2) Supporting reception formats with a guide-pulse of half-clock/clock/none.

3) Determines a end of reception by detecting a no-signal periods (No carrier).

(Supports same reception format with a different bit length.)

4) X’tal HOLD mode release function

Watchdog Timer

• External RC watchdog timer

• Interrupt and reset signals selectable

Clock Output Function

1) Able to output selected oscillation clock 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 as system clock.

2) Able to output oscillation clock of sub clock.