C8051F930DK Silicon Laboratories Inc, C8051F930DK Datasheet - Page 263
C8051F930DK
Manufacturer Part Number
C8051F930DK
Description
KIT DEV C8051F920,F921,F930,F931
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F930DK
Contents
Target Board, Power Adapter, USB Debug Adapter, Cables, Batteries, and Software
Processor To Be Evaluated
C8051F930
Processor Series
C8051F9xx
Data Bus Width
8 bit
Interface Type
I2C, UART, SPI
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Operating Supply Voltage
0.9 V to 3.6 V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With/related Products
C8051F920, F921, F930, F931
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1473
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F930DK
Manufacturer:
Silicon Labs
Quantity:
135
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24. Enhanced Serial Peripheral Interface (SPI0 and SPI1)
The Enhanced Serial Peripheral Interfaces (SPI0 and SPI1) provide access to two identical, flexible, full-
duplex synchronous serial busses. Both SPI0 and SPI1 will be referred to collectively as SPIn. SPIn can
operate as a master or slave device in both 3-wire or 4-wire modes, and supports multiple masters and
slaves on a single SPI bus. The slave-select (NSS) signal can be configured as an input to select SPIn in
slave mode, or to disable Master Mode operation in a multi-master environment, avoiding contention on
the SPI bus when more than one master attempts simultaneous data transfers. NSS can also be
configured as a chip-select output in master mode, or disabled for 3-wire operation. Additional general
purpose port I/O pins can be used to select multiple slave devices in master mode.
SYSCLK
Clock Divide
SPInCKR
SFR Bus
SPI0DAT
Logic
Write
Transmit Data Buffer
Receive Data Buffer
7
Figure 24.1. SPI Block Diagram
6
Shift Register
5
SPI CONTROL LOGIC
4
3
Data Path
2
SFR Bus
Control
SPInCFG
SPInDAT
1
SPI0DAT
Read
0
Rev. 1.1
Tx Data
Rx Data
Pin Interface
C8051F93x-C8051F92x
Control
Control
Logic
Pin
SPInCN
MOSI
MISO
SCK
NSS
C
R
O
S
S
B
A
R
SPIn IRQ
Port I/O
263
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