參數(shù)資料
型號(hào): TLC2543-EVM
廠商: Texas Instruments, Inc.
英文描述: TLC2543 Evaluation Module(TLC2543評(píng)估板)
中文描述: 器TLC2543評(píng)估模塊(器TLC2543評(píng)估板)
文件頁(yè)數(shù): 19/52頁(yè)
文件大?。?/td> 231K
代理商: TLC2543-EVM
Microcontroller
2-5
Hardware Description and Operation
2.1.3.1
Binary-to-Hexadecimal Conversion
The bits are read into the processor and output on the three LED displays
approximately every 0.5 second. The switch is treated as a hex address
command (MSB on left, LSB on right) as listed in Table 2–2:
Table 2–2.Input Select Switch Descriptions
Hex
Binary
Function Selected
Typical Response
0h
0000
Optical sensor input
User-controlled light intensity
1h
0001
Temperature sensor input
588h + temperature change
2h
0010
Potentiometer input
User adjusted
3h
0011
IN3 buffer input
000h or user input
4h
0100
IN4 buffer input
000h or user input
5h
0101
IN5 buffer input
000h or user input
6h–Ah
0110–1010
IN6 through IN10 inputs
000h or user input
Bh
1011
(V
ref
input)/2 test
–V
ref
input (ground) test
V
ref
input test
Enter power-down mode
800h
Ch
1100
000h
Dh
1101
FFFh
Eh
1110
Display blank
Fh
1111
Fast conversion rate on IN4 input
User input
Note:
Inputs IN3 through IN10 are made available to a user-supplied connector (see section 2.1.4, Interface Connector
Provisions).
2.1.3.2
Fast Conversion Rate
When the INPUT SELECT switch is set to Fh, the EVM operates in a fast
conversion rate mode. In this mode, the conversion rate is approximately 30k
conversions per second from the IN4 input. The displays are updated once
every 20 conversions.
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