C8051F022-GQR Silicon Laboratories Inc, C8051F022-GQR Datasheet - Page 202
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C8051F022-GQR
Manufacturer Part Number
C8051F022-GQR
Description
IC 8051 MCU 64K FLASH 100TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F02xr
Specifications of C8051F022-GQR
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
64
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x8b, 8x10b; D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
100-TQFP, 100-VQFP
For Use With
336-1200 - DEV KIT FOR F020/F021/F022/F023
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F022-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F020/1/2/3
202
Bit7:
Bit6:
Bit5:
Bit4:
Bit3:
Bit2:
Bit1:
Bit0:
SPIF
R/W
Bit7
SPIF: SPI0 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 SPI0 interrupt) to indicate a write to the SPI0
data register was attempted while a data transfer was in progress. 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.
MODF: Mode Fault Flag.
This bit is set to logic 1 by hardware (and generates a SPI0 interrupt) when a master mode collision is
detected (NSS is low and MSTEN = 1). 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.
RXOVRN: Receive Overrun Flag.
This bit is set to logic 1 by hardware (and generates a SPI0 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
SPI0 shift register. If interrupts are enabled, setting this bit causes the CPU to vector to the SPI0 inter-
rupt service routine. 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 hard-
ware 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: SPI0 Enable.
This bit enables/disables the SPI.
0: SPI disabled.
WCOL
R/W
Bit6
MODF
Figure 19.6. SPI0CN: SPI0 Control Register
R/W
Bit5
RXOVRN
R/W
Bit4
Rev. 1.4
TXBSY
Bit3
R
SLVSEL
Bit2
R
MSTEN
R/W
Bit1
(bit addressable)
SPIEN
R/W
Bit0
SFR Address:
00000000
Reset Value
0xF8
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