Si4012-A0-GT Silicon Laboratories Inc, Si4012-A0-GT Datasheet - Page 29

• Manufacturer Part Number: Si4012-A0-GT
• Description: RF Transmitter 27-960 MHz RF transmitter
• Manufacturer: Silicon Laboratories Inc
• Type: Crystalless SoC RF Transmitterr

Specifications of Si4012-A0-GT

• Package / Case: MSOP-10
• Operating Frequency: 27 MHz to 960 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Operating Supply Voltage: 1.8 V to 3.6 V
• Supply Current: 10 mA

5.1.9. COMMAND: GET_INT_STATUS
Notes: Calling the GET_INT_STATUS command will clear all interrupts and reset the nIRQ pin. Therefore, the host must note
TX FIFO Almost Full and TX FIFO Almost Empty Interrupts
These interrupts are triggered upon transition at the respective thresholds. Therefore, if an interrupt is generated for
FIFO Almost Empty and then cleared by a call to GET_INT_STATUS, another interrupt will NOT be generated if the FIFO
remains below the Almost Empty threshold. The FIFO must go above the threshold and then fall back to the threshold
before another Almost Empty threshold is generated and sent to the host.
Low Battery Detect (LBD) Interrupt
The LBD is cleared when the host calls GET_INT_STATUS. The Si4012 regenerates lbd interrupts periodically when the
LBD timer expires.
Purpose:
ARG:
DATA:
Command:
Response:
any interrupts bits that are set and take the necessary actions to service these interrupts.
GET_INT_STATUS
GET_INT_STATUS
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Command
itune – tune complete
STATUS
iffunder – FIFO Underflow
itxffafull – TX FIFO Almost Full
itxffaem – TX FIFO Almost Empty
iffover – FIFO Overflow
ipksent – Packet Sent
ilbd – Low Battery Detect
ipor – Power On Reset
Reply
DATA1
CMD
Read the interrupt status and clear interrupts.
None
iffunder
CTS
7
7
itxffafull
6
6
Rev 0.2
itxffaem
5
5
iffover
4
4
0x64
ipksent
3
3
Err
ilbd
2
2
itune
1
1
Si4012
ipor
0
0
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