SX1441I077TRLF Semtech, SX1441I077TRLF Datasheet - Page 51

• Manufacturer Part Number: SX1441I077TRLF
• Description: IC SYS-ON-CHIP BLUETOOTH 72LFBGA
• Manufacturer: Semtech

Specifications of SX1441I077TRLF

• Frequency: 2.4GHz
• Modulation Or Protocol: Bluetooth v1.2, Class 2
• Applications: Bluetooth v1.2
• Voltage - Supply: 2 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 4kByte ROM, 40kByte RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 72-LFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Power - Output: -
• Sensitivity: -
• Data Rate - Maximum: -
• Current - Transmitting: -
• Other names: SX1441I077LFTR

Personal Area Network
3.12.3 Block Diagram
The UART is a Universal Asynchronous Receiver Transmitter interface with separated receive and transmit 8-byte
FIFO, and fully automatic flow control.
© Semtech 2006
Pos
7
6
5
4
3
2
1
0
7:0
Pos
7:6
5
4
3
2
1:0
RegUartFifoRxSta
-
UartRxFifoFull
UartRxSErr
UartRxPErr
UartRxFErr
UartRxFifoOErr
UartRxBusy
UartRxDataReady
UartRxClear
RegUartFifoMisc
-
RtsMonitorMode
RtsLevelMode
Sel32k
UartFlowCtrl
-
Registers
Control
r/c
r/w
r
r
r
r
r
r
r
w
r/w
r
rw
rw
rw
rw
r
Table 90 - RegUartFifoMisc register
Figure 23 - UART block diagram
Reset
0
0
0
0
0
0
0
0
-
Reset
00
0
0
0
0
00
Table 89 - RegUartFifoRxSta
Receiver
Transmitter
UART Prescaler
51
Function
reserved
receive FIFO full flag
start error flag
parity error flag
frame error flag
overrun
RegUartFifoRxSta
uart receiver busy flag
1 = data available in the receive FIFO. Cleared by
reading all the data in the FIFO.
clear the receiver block when written
Function
reserved
1 = set RTS to 1 during monitor mode
0 = do not force RTS during monitor mode
1 = RTS rises when only 2 bytes left in the Rx FIFO and
falls when the FIFO is empty
0 = RTS rises when only 2 bytes left in the FIFO and
falls when more than 2 bytes left in the FIFO.
1 = input clock is ck32kHz low prescaler output
0 = input clock is ckRCext,.
1 = enable flow control
0 = disable flow control
reserved
FIFO
FIFO
error
flag.
SX1441 – Bluetooth® 1.2 SoC
Cleared
UA_RX
RTS
UA_TX
CTS
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