LC875CC8A/B2A

No.A0744-3/29

AD Converter: 8 bits × 15 channels

• Analog reference voltage can selected from VDD1 or VDD3.

PWM: Multifrequency 12-bit PWM × 4 channels

Remote Control Receiver Circuit (sharing pins with P73, INT3, and T0IN)

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

2) The noise filtering function is available for the INT3, T0IN, or T0HCP signal at P73. When P73 is read with

an instruction, the signal level at that pin is read regardless of the availability of the noise filtering function.

Watchdog Timer

1) External RC watchdog timer

2) Interrupt and reset signals selectable

Interrupts

• 29 sources, 10 vector addresses

1) Provides three levels (low (L), high (H), and highest (X)) of multiplex interrupt control. Any interrupt requests of

the level equal to or lower than the current interrupt are not accepted.

2) When interrupt requests to two or more vector addresses occur at the same time, the interrupt of the highest level

takes precedence over the other interrupts. For interrupts of the same level, the interrupt into the smallest vector

address takes precedence.

No.

Vector

Selectable Level

Interrupt Signal

1

00003H

X or L

INT0

2

0000BH

X or L

INT1

3

00013H

H or L

INT2/T0L/INT4

4

0001BH

H or L

INT3/INT5/Base timer

5

00023H

H or L

T0H/INT6

6

0002BH

H or L

T1L/T1H/INT7

7

00033H

H or L

SIO0/UART1 receive/UART2 receive

8

0003BH

H or L

SIO1/SIO2/UART1 transmit/UART2 transmit

9

00043H

H or L

ADC/T6/T7/PWM4, PWM5

10

0004BH

H or L

Port 0/T4/T5/PWM0, PWM1

• Priority Level: X > H > L

• Of interrupts of the same level, the one with the smallest vector address takes precedence.

Subroutine Stack Levels: 2048 levels maximum (the stack is allocated in RAM.)

High-speed Multiplication/Division Instructions

• 16 bits × 8 bits

(5 tCYC execution time)

• 24 bits × 16 bits

(12 tCYC execution time)

• 16 bits ÷ 8 bits

(8 tCYC execution time)

• 24 bits ÷ 16 bits

(12 tCYC execution time)

Oscillation Circuits

• RC oscillator circuit (internal): For system clock

• CF oscillator circuit: For system clock with internal Rf

• Crystal oscillator circuit: For low-speed system clock

• Multifrequency RC oscillator circuit (internal): For system clock

System Clock Divider Function

• Can run on low current.

• The minimum instruction cycle selectable from 300ns, 600ns, 1.2μs, 2.4μs, 4.8μs, 9.6μs, 19.2μs, 38.4μs, and 76.8μs

(at a main clock rate of 10MHz).