C8051F226-TB Silicon Laboratories Inc, C8051F226-TB Datasheet - Page 115
C8051F226-TB
Manufacturer Part Number
C8051F226-TB
Description
BOARD PROTOTYPING W/C8051F226
Manufacturer
Silicon Laboratories Inc
Type
MCUr
Specifications of C8051F226-TB
Contents
Board
Processor To Be Evaluated
C8051F22x and C8051F23x
Interface Type
USB
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
C8051F226
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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Bit7:
Bit6:
Bit5:
Bit4:
Bit3:
Bit2:
Bit1:
Bit0:
SPIF
R/W
Bit7
SPIF: SPI Interrupt Flag.
This bit is set to logic 1 by hardware at the end of a data transfer. If interrupts are enabled,
setting this bit causes the CPU to vector to the SPI0 interrupt service routine. This bit is not
automatically cleared by hardware. It must be cleared by software.
WCOL: Write Collision Flag.
This bit is set to logic 1 by hardware (and generates a SPI interrupt) to indicate a write to the
SPI data register was attempted while a data transfer was in progress. It is cleared by soft-
ware.
MODF: Mode Fault Flag.
This bit is set to logic 1 by hardware (and generates a SPI interrupt) when a master mode
collision is detected (NSS is low and MSTEN = 1). This bit is not automatically cleared by
hardware. It must be cleared by software.
RXOVRN: Receive Overrun Flag.
This bit is set to logic 1 by hardware (and generates a SPI interrupt) when the receive buffer
still holds unread data from a previous transfer and the last bit of the current transfer is
shifted into the SPI shift register. This bit is not automatically cleared by hardware. It must
be cleared by software.
TXBSY: Transmit Busy Flag.
This bit is set to logic 1 by hardware while a master mode transfer is in progress. It is
cleared by hardware at the end of the transfer.
SLVSEL: Slave Selected Flag.
This bit is set to logic 1 whenever the NSS pin is low indicating it is enabled as a slave. It is
cleared to logic 0 when NSS is high (slave disabled).
MSTEN: Master Mode Enable.
0: Disable master mode. Operate in slave mode.
1: Enable master mode. Operate as a master.
SPIEN: SPI Enable.
This bit enables/disables the SPI.
0: SPI disabled.
1: SPI enabled.
WCOL
R/W
Bit6
MODF
SFR Definition 15.2. SPI0CN: SPI Control
R/W
Bit5
RXOVRN
R/W
Bit4
TXBSY
Rev. 1.6
Bit3
R
SLVSEL
Bit2
R
MSTEN
R/W
Bit1
C8051F2xx
SPIEN
R/W
Bit0
SFR Address:
Reset Value
00000000
0xF8
115
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