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參數(shù)資料
| 型號： | TLC34075A-66 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Color-Palette(66MHz,視頻接口調(diào)色器) |
| 中文描述： | 顏色調(diào)色板（66MHz的，視頻接口調(diào)色器） |
| 文件頁數(shù)： | 31/53頁 |
| 文件大?。?/td> | 394K |
| 代理商： | TLC34075A-66 |
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2-18
2.12
Test Register
There are three test functions provided in the TLC34075A, and they are all controlled and monitored through
the test register. They are data flow check, DAC analog test, and screen integrity test.
The test register has two ports: one for a control word, accessed by writing to the register location, and one
for the data word, accessed by reading from the register location. Depending on the channel written in the
control word, the data read presents the information for that channel.
The control word is three bits long and occupies D<2:0>. It specifies which of the eight channels to inspect.
The following table and state machine diagrams show how each channel is addressed:
Table 2–9. Test Mode Selection
D1
D0
0
0
Color palette red value
0
1
Color palette green value
1
0
Color palette blue value
1
1
Identification code
0
0
Ones accumulation red value
0
1
Ones accumulation green value
1
0
Ones accumulation blue value
1
1
Analog test
D2
0
0
0
0
1
1
1
1
CHANNEL
011
010
001
000
110
101
100
111
ID code
RD
RD
RD
RD
RESET
Blue
Green
Red
RD
RD
RD
Red
Blue
Green
RD
Data Flow Check
DAC Analog Test
Screen Integrity Test
Figure 2–11. Test Register Control Word State Diagrams
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