전자부품 데이터시트 검색엔진
  Korean  ▼
ALLDATASHEET.CO.KR

X  

Preview PDF HTML

AT89LP428 데이터시트(PDF) 48 Page - ATMEL Corporation

부품명 AT89LP428
상세설명  8-bit Microcontroller with 4K/8K Bytes In-System Programmable Flash
PDF  149 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89LP428 데이터시트(HTML) 48 Page - ATMEL Corporation

Back Button AT89LP428 Datasheet HTML 44Page - ATMEL Corporation AT89LP428 Datasheet HTML 45Page - ATMEL Corporation AT89LP428 Datasheet HTML 46Page - ATMEL Corporation AT89LP428 Datasheet HTML 47Page - ATMEL Corporation AT89LP428 Datasheet HTML 48Page - ATMEL Corporation AT89LP428 Datasheet HTML 49Page - ATMEL Corporation AT89LP428 Datasheet HTML 50Page - ATMEL Corporation AT89LP428 Datasheet HTML 51Page - ATMEL Corporation AT89LP428 Datasheet HTML 52Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 48 / 149 page
background image
48
3654A–MICRO–8/09
AT89LP428/828
11.5.1
Mode 0 – 8-bit PWM with 8-bit Logarithmic Prescaler
In Mode 0, TLx acts as a logarithmic prescaler driving 8-bit counter THx (see Figure 11-6). The
PSCx bits in TCONB control the prescaler value. On THx overflow, the duty cycle value in RHx
is transferred to OCRx and the output pin is set high. When the count in THx matches OCRx, the
output pin is cleared low. The following formulas give the output frequency and duty cycle for
Timer 0 in PWM mode 0. Timer 1 in PWM mode 0 is identical to Timer 0.
Figure 11-6. Timer/Counter 1 PWM Mode 0
11.5.2
Mode 1 – 8-bit PWM with 8-bit Linear Prescaler
In Mode 1, TLx provides linear prescaling with an 8-bit auto-reload from RLx (see Figure 11-7 on
page 49). On TLx overflow, TLx is loaded with the value of RLx. THx acts as an 8-bit counter. On
THx overflow, the duty cycle value in RHx is transferred to OCRx and the output pin is set high.
When the count in THx matches OCRx, the output pin is cleared low. The following formulas
give the output frequency and duty cycle for Timer 0 in PWM mode 1. Timer 1 in PWM mode 1 is
identical to Timer 0.
Mode 0:
f
OUT
Oscillator Frequency
256
2
PSC0
1
+
×
-------------------------------------------------------
1
TPS
1
+
---------------------
×
=
Duty Cycle %
100
RH0
256
------------
×
=
OSC
TR1
GATE
INT1 Pin
TL1
(8 Bits)
Control
PSC1
TH1
(8 Bits)
OCR1
RH1
(8 Bits)
=
T1
÷TPS
Mode 1:
fOUT
Oscillator Frequency
256
256
RL0
–
()
×
-------------------------------------------------------
1
TPS
1
+
---------------------
×
=
Duty Cycle %
100
RH0
256
------------
×
=



Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100  ...More


데이터시트 다운로드

Go To PDF Page


링크 URL



ALLDATASHEET 가 귀하에 도움이 되셨나요?  [ DONATE ] 

Alldatasheet는?   |   광고문의   |   운영자에게 연락하기   |   개인정보취급방침   |   링크 투 데이터시트    |   링크교환   |   제조사별 검색
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com