Si4012-C1001GT Silicon Laboratories Inc, Si4012-C1001GT Datasheet - Page 26

• Manufacturer Part Number: Si4012-C1001GT
• Description: RF Transmitter 27-960 MHz RF transmitter
• Manufacturer: Silicon Laboratories Inc
• Type: Transmitterr

Specifications of Si4012-C1001GT

• Operating Frequency: 27 MHz to 960 MHz
• Lead Free Status / Rohs Status: Supplier Unconfirmed

Si4012
5.1.7. COMMAND: TX_START
26
Purpose:
ARG:
DATA:
Command:
TX_START
Command






ARG1
ARG2
ARG3
ARG4
ARG5
CMD
Packet Size[15:0] to be transmitted
State to transition to when transmission is completed.
AutoTX – Enable/Disable FIFO Auto-TX
State[1:0] – State to transition to when transmission is completed.
IdleMode[2:0] if State is Idle; DTmod[1:0] if State is TX.
Idle Mode
DTMod[1:0] 00
Start transmission and go to a designated state after the packet is transmitted. This is an
asynchronous operation. Transmission may not have been started when response is sent
back the host.
Current data size in the FIFO when TX_START is received.
1: Auto-Transmit Enabled.
0:Auto-Transmit Disabled.
00: IDLE – Go to idle state when the packet transmission completes based on the idle
01: SHUTDOWN – Go to shutdown state when the packet transmission completes.
10 - 11: Reserved.
Transmission will start when the FIFO level reaches the auto transmit threshold
specified in ffautotxthr in FIFO_THRESHOLD. If ffautotxthr=0, transmission will start
immediately.
Transmit will start immediately until the data specified in the PacketSize is
transmitted, or all the data in the FIFO is exhausted, whichever occurs first. If the
FIFO becomes empty before the specified packet length is transmitted a FIFO
underflow error will occur.
mode.
000 Standby
7
001 Sensor
010 Tune
01
10
11
6
5
4
– Low power state
– FIFO Mode
– Enable Low Battery Detector
– Periodic tuning
– CW Mode
– PN9-0 Mode
– PN9-1 Mode
Rev 0.2
3
PacketSize[15:8]
PacketSize[7:0]
DTMod[1:0]
0x62
AutoTX
2
IdleMode[2:0]
1
State[1:0]
0