參數(shù)資料
型號: AT89C51SND2C-7FTUL
廠商: Atmel
文件頁數(shù): 81/160頁
文件大小: 0K
描述: IC 8051 MCU FLASH 64K MP3 100BGA
標準包裝: 260
系列: 89C
核心處理器: 8051
芯體尺寸: 8-位
速度: 40MHz
連通性: I²C,IDE/ATAPI,MMC,SPI,UART/USART,USB
外圍設備: 音頻,I²S,MP3,PCM,POR,WDT
輸入/輸出數(shù): 32
程序存儲器容量: 64KB(64K x 8)
程序存儲器類型: 閃存
RAM 容量: 2.25K x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 3.3 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 100-TFBGA
包裝: 托盤
其它名稱: AT89C51SND2C7FTUL
7-22
DS785UM1
Copyright 2007 Cirrus Logic
Raster Engine With Analog/LCD Integrated Timing and Interface
EP93xx User’s Guide
7
Assuming the 3 bit input pattern that represents this 50% duty cycle grayscale is 0x3 (or
011b), the values in Table 7-7 should be used to program this pattern into the grayscale look-
up-table.
Since all patterns must be evaluated against their specific use, no more examples for half
intensity will be offered. Instead, another example will be used to make a walking distortion
more obvious.
Take the example of a one-third luminous intensity grayscale pattern. Assume a 3Hx3Vx3F
matrix for this definition. Wanting the intensity to be evenly distributed and given the three
frame interval, any cell in the matrix should only be active for one frame. The matrix could be
filled in as in Figure 7-6.
Figure 7-6. Programming for One-third Luminous Intensity
Table 7-7. Programming 50% Duty Cycle Into Lookup Table
Frame
Vert
Horz
VCNT (lines)
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
GrySclLUT
Address *4
Ctr
HCNT
(pixels)
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
Frame
Pixel
D18
D17
D16
Register
Address
D
1
5
D
1
4
D
1
3
D
1
2
D
1
D
1
0
D
9
D
8
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Value
1
base + 0x0C
01
011
10
00
101
00
11
00
011
base + 0x2C
10
100
01
11
010
11
00
01
011
base + 0x4C
11
000
10
011
01
10
011
base + 0x6C
00
111
01
100
10
11
011
Frame 0
H O R Z
Frame 1
V
100
010
E
010
001
R
001
100
T
Frame 2
001
100
010
相關PDF資料
PDF描述
AT89C52-24PI IC MICRO CTRL 24MHZ 40DIP
AT89C55WD-24AU IC 8051 MCU FLASH 20K 44TQFP
AT89EB5114-TGSIL IC 8051 MCU FLASH 4K 20SOIC
AT89LP214-20PU MCU 8051 2K FLASH 20MHZ 14-PDIP
AT89LP216-20SU MCU 8051 2K FLASH 20MHZ 16-SOIC
相關代理商/技術參數(shù)
參數(shù)描述
AT89C51-W 功能描述:8位微控制器 -MCU Microcontroller 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 安裝風格:SMD/SMT
AT89C52 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K Bytes Flash
AT89C52_00 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes Flash
AT89C52_99 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-bit Microcontroller with 8K Bytes Flash
AT89C52-12AA 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:8-Bit Microcontroller with 8K Bytes Flash