參數(shù)資料
型號: MR80C32E-12/883:D
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, 12 MHz, MICROCONTROLLER, CQCC44
文件頁數(shù): 24/46頁
文件大?。?/td> 7004K
156
7593L–AVR–09/12
AT90USB64/128
Figure 16-11. Timer/Counter timing diagram, clear timer on compare match mode, with pres-
caler (f
clk_I/O/8).
16.8
8-bit Timer/Counter register description
16.8.1
TCCR2A – Timer/Counter Control Register A
Bits 7:6 – COM2A1:0: Compare Match Output A mode
These bits control the Output Compare pin (OC2A) behavior. If one or both of the COM2A1:0
bits are set, the OC2A output overrides the normal port functionality of the I/O pin it is connected
to. However, note that the Data Direction Register (DDR) bit corresponding to the OC2A pin
must be set in order to enable the output driver.
When OC2A is connected to the pin, the function of the COM2A1:0 bits depends on the
WGM22:0 bit setting. Table 16-1 shows the COM2A1:0 bit functionality when the WGM22:0 bits
are set to a normal or CTC mode (non-PWM).
OCFnx
OCRnx
TCNTn
(CTC)
TOP
TOP - 1
TOP
BOTTOM
BOTTOM + 1
clk
I/O
clk
Tn
(clk
I/O/8)
Bit
7
6
543
2
1
0
COM2A1
COM2A0
COM2B1
COM2B0
––
WGM21
WGM20
TCCR2A
Read/write
R/W
R
R/W
Initial value
0
Table 16-1.
Compare output mode, non-PWM mode.
COM2A1
COM2A0
Description
0
Normal port operation, OC2A disconnected
0
1
Toggle OC2A on Compare Match
1
0
Clear OC2A on Compare Match
1
Set OC2A on Compare Match
相關(guān)PDF資料
PDF描述
MQ83C154XXX-12/883R 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
MR80C52XXX-12SBD 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQCC44
MQ80C32E-16SC 8-BIT, 16 MHz, MICROCONTROLLER, CQFP44
MQ80C32E-30/883D 8-BIT, 30 MHz, MICROCONTROLLER, CQFP44
MD80C52TXXX-12/883D 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CDIP40
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MR80C51BH 制造商:ROCHESTER 制造商全稱:ROCHESTER 功能描述:CMOS SINGLE - CHIP 8-BIT MICROCOMPUTER 64K program Memory Space
MR80C86 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86/B 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Harris Corporation 功能描述:Microprocessor, 16 Bit, 44 Pin, Ceramic, LCC
MR80C86-2 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CMOS 16-Bit Microprocessor
MR80C86-2/883 制造商:Rochester Electronics LLC 功能描述:- Bulk