參數(shù)資料
型號(hào): 935263156557
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP80
封裝: PLASTIC, QFP-80
文件頁數(shù): 18/76頁
文件大?。?/td> 567K
代理商: 935263156557
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
25
Figure 22. T2 control register (TM2CON).
7
6
54
321
0
TM2CON (EAH)
T2IS1
T2IS0
T2ER
T2BO
T2P1
T2P0
T2MS1
T2MS0
Table 15.
Description of TM2CON bits
SYMBOL
BIT
FUNCTION
T2IS1
TM2CON.7
Timer T2 16-bit overflow interrupt select
T2IS0
TM2CON.6
Timer T2 byte overflow interrupt select
T2ER
TM2CON.5
Timer T2 external reset enable. When this bit is set, Timer T2 may be reset by a rising edge on RT2 (P1.5).
T2BO
TM2CON.4
Timer T2 byte overflow interrupt flag
T2P1
TM2CON.3
Timer T2 prescaler select
T2P0
TM2CON.2
T2MS1
TM2CON.1
Timer T2 mode select
T2MS0
TM2CON.0
Table 16.
Timer 2 prescaler select
T2P1
T2P0
TIMER T2 CLOCK
0
Clock source
0
1
Clock source/2
1
0
Clock source/4
1
Clock source/8
Table 17.
Timer 2 mode select
T2MS1
T2MS0
MODE SELECTED
0
Timer T2 halted (off)
0
1
T2 clock source = fCLK/12
1
0
Test mode; do not use
1
T2 clock source = pin T2
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