- 您现在的位置：买卖IC网 > Sheet目录395 > AS3930-BTST (ams)IC ASK RECEIVER 1CH LP 16-TSSOP
AS3930
Datasheet - D e t a i l e d D e s c r i p t i o n
Table 11. Bits B13-B8
B13
0
0
0
B12
0
0
0
B11
1
1
1
B10
0
1
1
B9
1
0
0
B8
1
0
1
Read/Write Register
R11
R12
R13
The last 8 bits are the data that has to be written respectively read. A CS toggle high-low-high terminates the command mode.
If a direct command is sent (B15-B14=11), then the bits from B13 to B8 define the direct command while the last 8 bits are omitted. Table 12
shows all possible direct commands.
Table 12. List of Direct Commands
COMMAND_MODE
clear_wake
reset_RSSI
trim_osc
clear_false
preset_default
B13
0
0
0
0
0
B12
0
0
0
0
0
B11
0
0
0
0
0
B10
0
0
0
0
1
B9
0
0
1
1
0
B8
0
1
0
1
0
All direct commands are explained below:
-
-
-
-
-
clear_wake : Clears the wake state of the chip. In case the chip has woken up (WAKE pin is high), the chip is set back to listening mode.
reset_RSSI : Resets the RSSI measurement.
trim_osc : Starts the trimming procedure of the internal RC oscillator (see Figure20).
clear_false : Resets the false wake-up register ( R13<7:0> =00).
preset_default : Sets all registers in the default mode, as shown in Figure 7 .
Note: In order to get the AS3930 work properly after sending the preset_default direct command, it is mandatory to write R0<3> =0 and
R0<2> =0.
Writing of Data to Addressable Registers (WRITE Mode)
The SDI is sampled at the falling edge of SCLK (as shown in the following diagrams).
A CS toggling high-low-high indicates the end of the WRITE command after register has been written. The following example shows a write
command.
Figure 12. Writing of a Single Byte (falling edge sampling)
CS
SCLK
SDI
X
0
0
A5
A4
A3
A2
A1
A0
D7
D6
D5
D4
D3
D2
D1
D0
X
Two leading
Zeros indicate
WRITE Mode
www.ams.com/LF-Receiver/AS3930
SCLK rising
edge Data is
transfered from
μC
SCLK
falling edge
Data is
sampled
Revision 1.5
Data is moved
to Address
A5-A0
CS falling
edge signals
end of
WRITE Mode
15 - 32
发布紧急采购，3分钟左右您将得到回复。
相关PDF资料
AS3931-ZTSU
IC ASK RECEIVER LF 3CH 16-TSSOP
AS3932-BTST
IC RF PROGRAM 16-TSSOP
AS500106
TLAPS MAGNET CARRIER
AS5263-HQFT-500
IC ENCODER ROTARY 12BIT 32-QFN
AT 150 B420L
SENSOR CURRENT 150A 30V MOD
AT 150 B5
SENSOR CURRENT 150A MOD
AT 20 B10
SENSOR CURRENT 20A MOD
AT-7666A
SENSOR AMORPHOUS 146X167.5X0.3
相关代理商/技术参数
AS3930-DB
制造商:ams 功能描述:AS3930 Demo Board
AS3931
制造商:AMS 功能描述:AS Series 19 to 150 kHz Surface Mount 3D Wakeup Receiver - TSSOP-16
AS3931 DB
制造商:AMS 功能描述:BOARD DEMO FOR AS3931 制造商:AMS 功能描述:Demoboard for AS3931 3D Low Power Wakeup Receiver
AS39310FLF
制造商:TT Electronics / IRC 功能描述:AS39310FLF
AS39310HLF
制造商:TT Electronics / IRC 功能描述:AS39310HLF
AS39310JLF
制造商:TT Electronics / IRC 功能描述:AS39310JLF
AS39311FLF
制造商:TT Electronics / IRC 功能描述:AS39311FLF
AS39311HLF
制造商:TT Electronics / IRC 功能描述:AS39311HLF