参数资料
型号: S3P9664-SK
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO20
封装: 0.300 INCH, SOP-20
文件页数: 133/148页
文件大小: 784K
代理商: S3P9664-SK
S3C9664/P9664 (Preliminary Spec)
BASIC TIMER and TIMER 0
10-1
10
BASIC TIMER and TIMER 0
MODULE OVERVIEW
The S3C9664 has two default timers: an 8-bit basic timer and one 8-bit general-purpose timer/counter. The 8-bit
timer/counter is called timer 0.
Basic Timer (BT)
You can use the basic timer (BT) in two different ways:
— As a watchdog timer to provide an automatic reset mechanism in the event of a system malfunction
— To signal the end of the required oscillation stabilization interval after a reset or a Stop mode release.
The functional components of the basic timer block are:
— Clock frequency divider (f
OSC divided by 4096, 1024, or 128) with multiplexer
— 8-bit basic timer counter, BTCNT (DDH, read-only)
— Basic timer control register, BTCON (DCH, read/write)
Timer 0
Timer 0 has three operating modes, one of which you select by the appropriate T0CON setting:
— Interval timer mode
— Capture mode with a rising or falling edge trigger at the T0 pin
— PWM mode
Timer 0 has the following functional components:
— Clock frequency divider (f
OSC divided by 4096, 256, 8, or 1) with multiplexer
— 8-bit counter (T0CNT), 8-bit comparator, and 8-bit reference data register (T0DATA)
— I/O pin (P1.0/T0) for timer 0 capture input or match output
— Timer 0 overflow interrupt and match/capture interrupt generation
— Timer 0 control register, T0CON
— Timer 0 interrupt control register, T0INT
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