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参数资料
| 型号： | STLR4200S |
| 厂商： | Electronic Theatre Controls, Inc. |
| 英文描述： | USB/lrDA Bridge Controller |
| 中文描述： | 的USB / lrDA桥控制器 |
| 文件页数： | 16/21页 |
| 文件大小： | 308K |
| 代理商： | STLR4200S |
16
3-4200-D1-2.0-0403
STIr4200
USB/IrDA Bridge Controller
O F F I C I A L P R O D U C T D O C U M E N T A T I O N
6.1.3.
Control Register
Offset 3
7
6
5
4
3
2
1
0
Control Register
Default State
SDMODE
0
RXSLOW
0
Reserved
0
TXPWD
0
RXPWD
0
TXPWR(1: 0)
0
SRESET
0
0
Bit Number Bit Mnemonic Access
Function
7
SD/MODE
R/W
Use this bit only when the STIr4200 is connected to a TEMIC style infrared
transceiver. This bit is used to put the infrared transceiver into the power
down state or toggle the transceiver between high and low speed.
POWER DOWN STATE: Set the SD/MODE bit to enter the power down state.
Clear the SD/MODE bit to exit the power down state.
SET TEMIC HIGH SPEED: Set the FIR bit (bit 7) in the Mode Register, then
set SD/MODE bit, then clear SD/MODE bit.
SET TEMIC LOW SPEED: Clear the FIR bit (bit 7) in the Mode Register, then
set the SD/MODE bit, then clear the SD/MODE bit.
The sequences described above for setting the high or low speed mode
enables a state machine in the STIr4200 to automatically toggle the TXDATA
and UOUT (SD/MODE) pins on the STIr4200.
When set, selects RXSLOW as the receive input. When cleared, selects
RXFAST as the receive input.
Reserved
When set, powers down the infrared transmitter (modulator).
When set, powers down the infrared receiver (demodulator).
Sets the internal pull down resistance to control the current presented to the
transmit diode.
00 : HIGH (max current)
01 : MED HIGH
10 : MED LOW
11 : LOW (min current)
When set, performs soft reset of the infrared modulator/demodulator.
6
RXSLOW
R/W
5
4
3
Reserved
TXPWD
RXPWD
TXPWR(1: 0)
R
R/W
R/W
R/W
2-1
0
SRESET
R/W
Table 15. Control Register
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