SX1441EVK Semtech, SX1441EVK Datasheet - Page 45

• Manufacturer Part Number: SX1441EVK
• Description: KIT DEV FOR SX1441
• Manufacturer: Semtech
• Series: EasyBlue™r
• Type: Bluetoothr

Specifications of SX1441EVK

• For Use With/related Products: SX1441
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Contents: -
• Other names: SX1441DVK; SX1441DVK

Personal Area Network
3.11 SERIAL PERIPHERAL INTERFACE (SPI)
3.11.1 Features
3.11.2 Register Map
© Semtech 2006
Name
RegSpiControl
RegSpiStatus
RegSpiDataOut
RegSpiDataIn
RegSpiPullup
RegSpiDir
RegSpiSlvSel
Pos
7
6
5
4
3
2
1:0
• Full duplex operating mode
• Master/slave configuration
• Separate transmit data, shift data, and receive data registers in order to perform back-to-back
• Four programmable baud rates
• Programmable serial clock polarity and phase
• SPI receive register full interrupt
• Overflow detection flag
• 8 I/O pads which can be configured as SPI or GPIO.
• Support up to 5 slaves devices
• Content of a serial memory connected to NSS[0] automatically loaded upon reset
transmissions.
RegSpiControl
ClearCounter
NotSlaveSelect
SpiMaster
SpiEnable
ClockPhase
ClockPolarity
BaudRate
rw
r/w
rw
rw
rw
rw
rw
rw
Table 75 - RegSpiControl register
Reset
0
1
1
1
0
0
00
Table 74 - SPI registers
45
Function
1 = clear control counters
In master mode: drives the NSS[0] pin. It must be set to
0 during byte transfer.
In slave mode: unused
1 = master mode selected
0 = slave mode selected
1 = SPI mode
0 = GPIO mode
clock phase
clock polarity
In master mode: baud rate selection
00 = ckRCext/2
10 = ckRCext/16
In slave mode: unused
Address (Hex)
0x0068
0x0069
0x006A
0x006B
0x006C
0x006D
0x006E
SX1441 – Bluetooth® 1.2 SoC
01 = ckRCext/8
11 = ck4kHz
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Data Sheet