參數(shù)資料
型號(hào): SAB-C505-LM
廠商: SIEMENS A G
元件分類: 微控制器/微處理器
英文描述: 8-Bit CMOS Microcontroller
中文描述: 8-BIT, MROM, 20 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, MQFP-44
文件頁數(shù): 39/85頁
文件大?。?/td> 487K
代理商: SAB-C505-LM
C505L
Data Sheet
37
06.99
.
Figure 17
LCD Clocking
The generated LCD clock has a duty-cycle of 50%. The table in
Figure 17
shows the recommended
reload values at different input frequencies (
f
LCDIN
) to generate LCD clocks of frequencies less than
360 Hz.
The frequency of the LCD clock could be calculated by:
MCD03859
1
0
RTC
f
OSC
f
CSEL
SLT
LCDIN
f
15-Bit Down Counter
LC14-0
LCR14
LCR0
LCR14-0
LC0
LC14
Underflow
(Reload)
Toggle
LCD
f
(< 360 Hz)
LCR
(15-Bit reload)
LCD
f
(in Hz)
LCDIN
f
32.768 kHz
002E
H
356.17
2 MHz
0ADA
H
359.97
4 MHz
15B4
H
359.97
6 MHz
208E
H
359.97
20 MHz
16 MHz
12 MHz
10 MHz
6C84
H
3642
56D0
411C
H
H
H
359.97
359.97
359.97
359.97
f
LCD
=
f
LCDIN
2
×
(15-bit reload value)
Hz
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