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參數資料
| 型號： | LM9831 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| 中文描述： | LM9831 42位彩色，1200dpi的USB圖像掃描儀 |
| 文件頁數： | 10/41頁 |
| 文件大小： | 320K |
| 代理商： | LM9831 |
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LM9831 Register Listing
Registers in bold boxes are reset to that value on power-up. All register addresses are in hexadecimal. All other numbers are
decimal unless otherwise noted.
Address
Function
D
7
D
6
D
5
D
4
D
3
D
2
D
1
D
0
Value
IMAGE BUFFER (READ ONLY)
00
Pixel (Image) Data
n n n n n n n n One byte of image data.
STATUS REGISTERS (READ ONLY)
01
Image Data Available In Buffer
n n n n n n n nkilobytes of image data is available
0 False
1 True
0
False
1
True
0
False
1
True
0
False
1
True
0
False
1
True
0
False
1
True
0
False
1
True
0
False
1
True
02
PAPER SENSE 1 State
read clears bit if edge sensitive input.
PAPER SENSE 2 State
read clears bit if edge sensitive input.
MISC I/O 1 State
read clears bit if edge sensitive input.
MISC I/O 2 State
read clears bit if edge sensitive input.
MISC I/O 3 State
read clears bit if edge sensitive input.
MISC I/O 4 State
read clears bit if edge sensitive input.
MISC I/O 5 State
read clears bit if edge sensitive input.
MISC I/O 6 State
read clears bit if edge sensitive input.
DATAPORT REGISTERS
03
DataPort Target
0 0 Offset Coefficient Data
0 1 Gain Coefficient Data
1 0 Gamma Lookup Table
1 1 N/A
Red
Green
Blue
N/A
DataPort Target Color
0 0
0 1
1 0
1 1
Pause (Read Only)
This bit indicates whether or not the scanner
is currently paused due to a buffer full
condition.
0
Normal State
1
The scanner is currently in the pause/reverse cycle.
DRAM Test
0
1
R
/
W
Normal Operation
DRAM Test mode
Address of location to be read/written to.
a = 0 to 4095 for gamma tables,
0 to 16383 for Offset and Gain Coefficient Data
Addresses greater than these are illegal.
Bit D6 of register 4 indicates whether next operation
will be a Read (D6=1) or a Write (D6=0)
.
Data to be read from or written to the address of the
currently selected Dataport Target. The DataPort
Address is automatically incremented whenever one
(gamma data) or two (Gain/Offset Data) bytes are
read from or written to this register.
04
DataPort Address - MSB
a a a a a a
05
DataPort Address - LSB
a a a a a a a a
06
DataPort
n n n n n n n n
相關PDF資料 |
PDF描述 |
|---|---|
| LM9831CCVJDX | LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832CCVJD | LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832 | LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9833CCVJD | LM9833 48-Bit Color, 1200dpi USB Image Scanner |
| LM9833 | LM9833 48-Bit Color, 1200dpi USB Image Scanner |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LM9831CCVJD | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9831CCVJDX | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9831 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:LM9832 42-Bit Color, 1200dpi USB Image Scanner |
| LM9832B-B WAF | 制造商:Texas Instruments 功能描述: |
| LM9832B-E WAF | 制造商:Texas Instruments 功能描述: |
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