LC875CC8A Datasheet, PDF (3/29 Pages) Sanyo Semicon Device – ROM 128K/112K byte, RAM 4096 byte on-chip 8-bit 1-chip Microcontroller

LC875CC8A/B2A
„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).
No.A0744-3/29