LC87F5LP6A

No.A0664-3/28

UART: 2 channels

1) Full duplex

2) 7/8/9 bit data bits selectable

3) 1 stop bit (2 bits in continuous transmission mode)

4) Built-in baudrate generator (with baudrates of 16/3 to 8192/3 tCYC)

AD Converter

• 8 bits × 15 channels

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 Address

Level

Interrupt Source

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 levels X > H > L

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

Subroutine Stack Levels

• 4096 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 oscillation circuit (internal)

: For system clock

• CF oscillation circuit

: For system clock, with internal Rf

• Crystal oscillation circuit

: For low-speed system clock

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