sx1441 Semtech Corporation, sx1441 Datasheet - Page 49

• Manufacturer Part Number: sx1441
• Description: Bluetooth V1.2 Soc For Voice And Data Applications With Dsp Capabilities
• Manufacturer: Semtech Corporation

Personal Area Network
3.11.5 Pins
The Table 82 summarizes the SPI pins usage in either SPI or GPIO mode.
3.12 APPLICATION UART
3.12.1 Features
3.12.2 Registers Map
© Semtech 2006
Pin name
SCK
MISO
MOSI
NSS[0]
NSS[1]
NSS[2]
NSS[3]
NSS[4]
Name
RegUartFifoCtrl
RegUartFifoBaud
RegUartFifoTx
RegUartFifoTxSta
RegUartFifoRx
RegUartFifoRxSta
RegUartFifoMisc
•
•
•
•
•
•
•
•
•
•
•
Full duplex operation with buffered 8-byte FIFO for receiver and transmitter.
Internal baud rate generator with 8 x 32 programmable baud rates.
7 or 8 bits word length.
Even, odd, or no-parity bit generation and detection
1 stop bit
Error receive detection: Start, Parity, Frame and Overrun
Receiver echo mode
Three interrupts (receive: data ready, FIFO threshold. Transmit: FIFO empty)
Enable receive and/or transmit
Invert pad Rx and/or Tx
Flow control (RTS and CTS)
Function
SPI
serial clock
slave 0 select (active low)
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
master-in, slave-out
master-out, slave-in
Table 83 - UART registers
Table 82 - SPI pins
GPIO
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
digital I/O with selectable pull-up
49
Address (Hex)
0x0030
0x0031
0x0032
0x0033
0x0034
0x0035
0x0036
SX1441 – Bluetooth® 1.2 SoC
Bit number in
registers
0
1
2
3
4
5
6
7
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Data Sheet