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LC88FC2H0B Datasheet(PDF) 5 Page - ON Semiconductor |
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LC88FC2H0B Datasheet(HTML) 5 Page - ON Semiconductor |
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5 / 47 page  LC88FC2H0B www.onsemi.com 5 Infrared Remote Controller Receiver Circuit 1) Noise rejection function (noise filter time constant: Approx. 120 s when the 32.768kHz crystal oscillator is selected as the reference clock source) 2) Supports data encording systems such as PPM (Pulse Position Modulation) and Manchester encording 3) X’tal HOLD mode release function Internal Reset Function Power-on reset (POR) function 1) POR reset is generated only at power-on time. 2) The POR release level can be selected through option configuration. Low-voltage detection reset (LVD) function 1) LVD and POR functions are combined to generate resets when power is turned on and when power voltage falls below a certain level. 2) The use/disuse of the LVD function and the low voltage threshold level can be selected by option configuration. Interrupts (peripheral function) 61 sources (33 modules), 14 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 Interrupt Module 1 08000H Watchdog timer (1) 2 08004H Base timer (2) 3 08008H Timer 0 (2) 4 0800CH INT0 (1) 5 08014H INT1 (1) 6 08018H INT2 (1) / timer 1 (2) / UART2 (4) 7 0801CH INT3 (1) / timer 2 (4) / SMIIC0 (1) / SLIIC1 (1) 8 08020H INT4 (1) / timer 3 (2) / Infared remote control receiver(4) 9 08024H INT5 (1) / timer 4 (1) / SIO1 (2) 10 0802CH PWM0 (1) / SMIIC1(1) 11 08030H ADC (1) / timer 5 (1) / SIO4(2) 12 08034H INT6 (1) / timer 6 (1) / UART 3 (4) 13 08038H INT7 (1) / SIO0 (2) / SIO0(2) 14 0803CH Port 0 (3) / Port 5 (8) / RTC (1) / CRC (1) 3 priority levels selectable Of interrupts of the same level, the one with the smallest vector address takes precedence. A number enclosed in parentheses denotes the number of sources. Subroutine stack : RAM area Subroutine calls that automatically save PSW, interrupt vector calls: 6 bytes Subroutine calls that do not automatically save PSW: 4 bytes Multiplication/division instructions 16 bits × 16 bits (4 tCYC execution time) 16 bits ÷ 16 bits (18 to 19 tCYC execution time) 32 bits ÷ 16 bits (18 to 19 tCYC execution time) |
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