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參數資料

型號：	W77E468F-25
廠商：	WINBOND ELECTRONICS CORP
元件分類：	8位微控制器
英文描述：	8 BIT MICROCONTROLLER
中文描述：	8位微控制器
文件頁數：	59/84頁
文件大小：	352K
代理商：	W77E468F-25

Preliminary W77E468

Publication Release Date: January 1999

- 59 - Revision A1

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Clock Source

Mode input

div. by 4 osc/1

div. by 64 osc/16

div. by 1024 osc/256

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T2M = CKCON.5

C/T2 = T2CON.1

T2CON.7

T2 = P1.0

T2CON.6

TR2 = T2CON.2

T2EX = P1.1

EXEN2 = T2CON.3

EXF2

Timer 2

Interrupt

TF2

TH2

TL2

RCAP2H

RCAP2L

Figure 14. 16-Bit Capture Mode

AUTO-RELOAD MODE, COUNTING UP

The auto-reload mode as an up counter is enabled by clearing the CP/

RL2

bit in the T2CON register

and clearing the DCEN bit in T2MOD register. In this mode, Timer/Counter 2 is a 16 bit up counter.

When the counter rolls over from FFFFh, a reload is generated that causes the contents of the

RCAP2L and RCAP2H registers to be reloaded into the TL2 and TH2 registers. The reload action also

sets the TF2 bit. If the EXEN2 bit is set, then a negative transition of T2EX pin will also cause a

reload. This action also sets the EXF2 bit in T2CON.

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