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| 型號： | VMX51C900 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Versa Mix 8051 MCU with LCD Controller and ADC |
| 中文描述： | 8051反之亦然混合與LCD控制器和ADC的微控制器 |
| 文件頁數(shù)： | 34/55頁 |
| 文件大?。?/td> | 2395K |
| 代理商： | VMX51C900 |
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VMX51C900
______________________________________________________________________________________________
www.ramtron.com
page 34 of 55
T
ABLE
34:
LCD
C
ONTROL
REGISTER
(LCDCTRL,
DF
H
)
7
LCDON
LCDEN
3
-
LCDCLK2
Bit
Mnemonic
7
LCDON
6
5
4
-
0
LCDPRI
1
LCDCLK1
2
LCDCLK0
Description
1 = LCD Display is ON
0 = LCD Display is OFF
1 = LCD is enabled
0 = LCD is disabled
1 = Give priority of LCD operation on
#PSEN/LCDSEG4 and
ALE/LCDSEG5 pins
Unused
LCD prescaler select
6
LCDEN
5
LCDPRI
4:3
2:0
-
LCDCLK[2:0]
The LCD driver clock can be adjusted to meet the
driving speed requirements of the LCD display. The
LCDCLK[2:0] bits of the LCDCTRL register are used to
define the LCD driver clock prescaler value as follows:
LCDCLK[2:0]
LCD Clock prescaler value
000
001
010
011
100
101
110
111
The LCD clock speed can be calculated using the
following formula.
F
CLK_LCD
=
F
osc
2 * 32 * LCDCLK[2:0]
The LCD frame frequency is defined as follows:
F
LCD_Frame
= F
CLKLCD
/
256
The typical range of F
Frame
is:
1026HZ ~ 8HZ at 16MHz (Fosc = 8MHz)
The six LCDBUFx registers contain the mapping of the
LCDSEGxx/LCDCOMx segment state. To activate a
given segment (ON) during one of the four time-slots in
each
frame,
the
bit
segment/common must be set to 1.
For example, to activate the LCDSEG 0 during the
second time-slot (controlled by LCDCOM2), bit 6 of the
LCDBUF0 must be set to 1. If the LCDSEG 0 also
1
2
4
8
16
32
64
128
corresponding
to
the
needs to be active during the LCDCOM1 time-slot,
then both bits 5 and 6 of the LCDBUF0 register must
be set.
The
following
tables
segment/common combinations controlled by the
LCDBUFx registers..
describe
the
LCD
T
ABLE
35:
LCD
B
UFFER
R
EGISTER
0
(LCDBUF0,
E1
H
)
7
SEG0_COM3
SEG0_COM2
3
SEG1_COM3
SEG1_COM2
Bit
Mnemonic
7
SEG0_COM3
6
5
4
SEG0_COM1
1
SEG1_COM1
SEG0_COM0
0
SEG1_COM0
2
Description
If set to 1, the LCDSEG0 will be ON
during LCDCOM3 time slot
If set to 1, the LCDSEG0 will be ON
during LCDCOM2 time slot
If set to 1, the LCDSEG0 will be ON
during LCDCOM1 time slot
If set to 1, the LCDSEG0 will be ON
during LCDCOM0 time slot
If set to 1, the LCDSEG1 will be ON
during LCDCOM3 time slot
If set to 1, the LCDSEG1 will be ON
during LCDCOM2 time slot
If set to 1, the LCDSEG1 will be ON
during LCDCOM1 time slot
If set to 1, the LCDSEG1 will be ON
during LCDCOM0 time slot
6
SEG0_COM2
5
SEG0_COM1
4
SEG0_COM0
3
SEG1_COM3
2
SEG1_COM2
1
SEG1_COM1
0
SEG1_COM0
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| VMX51C900-25-L | 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| VMX51C900-25-LG | 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| VMX51C900-25-L-G | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Versa Mix 8051 MCU with LCD Controller and ADC |
| VMX51C900-25-P | 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
| VMX51C900-25-PG | 功能描述:8位微控制器 -MCU 8K+256 25MHz 5V RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風(fēng)格:SMD/SMT |
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