LC87FBG08A

No.A2046-3/30

• Timer 6: 8-bit timer with a 6-bit prescaler (with toggle outputs)

• Timer 7: 8-bit timer with a 6-bit prescaler (with toggle outputs)

• Base timer

1) The clock is selectable from the subclock (32.768kHz crystal oscillation), system clock, and timer 0 prescaler

output.

2) Interrupts are programmable in 5 different time schemes

High-speed Clock Counter

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

• 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

Note: UART1 and PWM use the same pins (P20 and P21), so they cannot be used at the same time.

AD converter: 12 bits/8 bits

× 9 channels

• Successive approximation

• 12 bits/8 bits AD converter resolution selectable

• Port input: 8 channels, Reference voltage input: 1 channel

PWM: Multifrequency 12-bit PWM

× 2 channels

Note: UART1 and PWM use the same pins (P20 and P21), so they cannot be used at the same time.

Reference voltage generator circuit (VREF17)

• Capable of monitoring the power supply voltage by AD conversion of frequency variable RC oscillator circuit’s

reference voltage.

Remote Control Receiver Circuit (sharing pins with P15, SCK1, INT3, and T0IN)

• Noise rejection function (noise filter time constant selectable from 1 tCYC, 32 tCYC, and 128 tCYC)

Clock Output Function

• Capable generating clock outputs with a frequency of 1/1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64 of the source clock selected

as the system clock.

• Capable of generating the source clock for the subclock.

Watchdog Timer

• Capable of generating an internal reset on an overflow of a timer running on the low-speed RC oscillator clock or

subclock.

• Operating mode at standby is selectable from 3 modes (continue counting/stop operation/stop counting with a

count value held).