參數(shù)資料
型號: MSP430C336IPJM
廠商: TEXAS INSTRUMENTS INC
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 3.8 MHz, RISC MICROCONTROLLER, PQFP100
封裝: PLASTIC, MS-022, QFP-100
文件頁數(shù): 7/42頁
文件大?。?/td> 637K
代理商: MSP430C336IPJM
MSP430C33x, MSP430P337A
MIXED SIGNAL MICROCONTROLLERS
SLAS227A – OCTOBER 1999 – REVISED JUNE 2000
15
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
8-Bit Timer/Counter
The 8-bit interval timer supports three major functions for applications:
D Serial communication or data exchange
D Plus counting or plus accumulation
D Timer
The 8-Bit Timer/Counter peripheral includes the following major blocks: an 8-bit up-counter with preload
register, an 8-bit control register, an input clock selector, an edge detection (e.g. start bit detection for
asynchronous protocols), and an input and output data latch, triggered by the carry-out-signal from the 8-Bit
Timer/Counter.
The 8-Bit Timer/Counter counts up with an input clock, which is selected by two control bits from the control
register. The four possible clock sources are MCLK, ACLK, the external signal from terminal P0.1, and the signal
from the logical AND of MCLK and terminal P0.1.
Two counter inputs (load, enable) control the counter operation. The load input controls load operations. A
write-access to the counter results in loading the content of the preload register into the counter. The software
writes or reads the preload register with all instructions. The preload register acts as a buffer and can be written
immediately after the load of the counter is completed. The enable input enables the count operation. When
the enable signal is set to high, the counter will count-up each time a positive clock edge is applied to the clock
input of the counter.
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