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參數(shù)資料
| 型號： | MSM64172-XXX |
| 廠商： | LAPIS SEMICONDUCTOR CO LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 0.6 MHz, MICROCONTROLLER, UUC |
| 封裝： | DIE |
| 文件頁數(shù)： | 19/30頁 |
| 文件大?。?/td> | 239K |
| 代理商： | MSM64172-XXX |
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Semiconductor
MSM64172
Time base counter (TBC)
The MSM64172 has a built-in time base counter (TBC) that generates clocks to be supplied to
internal peripheral circuits. The time base counter is composed of 15 binary counters. The count
clock of the time base is driven by the oscillation clock (32.768 kHz) of the crystal oscillation
circuit. The output of the time base counter is used for the buzzer driver, the system reset circuit,
the watchdog timer, the time base interrupt, and the sampling clocks of each port.
I/O port
Input-output ports (P1, P2) (8 bits)
: Pull-up (pull-down) resistor input or high-
impedance input, CMOS output or NMOS
open drain output: these can be specified for
each bit; external 0 interrupt
Input port (P0) (4 bits)
: Pull-up (pull-down) resistor input or high-
impedance input; external 1 interrupt
Interrupt (INTC)
The MSM64172 has seven interrupt sources (seven vector addresses), of which two are external
interrupts from ports and five are internal interrupts.
Of the seven interrupt sources, only the watchdog interrupt cannot be disabled (non-maskable
interrupt). The other six interrupts are controlled by the master interrupt enable flag (MI) and the
interrupt enable registers (IE0 and IE1). When an interrupt condition is met, the CPU branches
to a vector address corresponding to the interrupt source.
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| MSM64424 | 制造商:OKI 制造商全稱:OKI electronic componets 功能描述:Built-in 256/512-Bit EEPROM and LCD Driver 4-Bit Microcontroller |
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