C8051F411-GMR Silicon Laboratories Inc, C8051F411-GMR Datasheet - Page 222
C8051F411-GMR
Manufacturer Part Number
C8051F411-GMR
Description
Microcontrollers (MCU) 50 MIPS 32KB 12ADC RTCLOCK 28 PIN MCU
Manufacturer
Silicon Laboratories Inc
Datasheet
1.C8051F410DK.pdf
(270 pages)
Specifications of C8051F411-GMR
Processor Series
C8051F4x
Core
8051
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
32 KB
Data Ram Size
2.25 KB
Interface Type
I2C, SMBus, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
20
Number Of Timers
4
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
QFN
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F410DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 20 Channel
On-chip Dac
12 bit, 2 Channel
Package
28QFN EP
Device Core
8051
Family Name
C8051F41x
Maximum Speed
50 MHz
Ram Size
2.25 KB
Operating Supply Voltage
1.8|2.5|3.3|5 V
Operating Temperature
-40 to 85 °C
Lead Free Status / Rohs Status
Details
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C8051F410/1/2/3
whichever is slower. When the SPI is configured as a slave, the maximum data transfer rate (bits/sec) for
full-duplex operation is 1/10 the system clock frequency, provided that the master issues SCK, NSS (in 4-
wire slave mode), and the serial input data synchronously with the slave’s system clock. If the master
issues SCK, NSS, and the serial input data asynchronously, the maximum data transfer rate (bits/sec)
must be less than 1/10 the system clock frequency. In the special case where the master only wants to
transmit data to the slave and does not need to receive data from the slave (i.e. half-duplex operation), the
SPI slave can receive data at a maximum data transfer rate (bits/sec) of 1/4 the system clock frequency.
This is provided that the master issues SCK, NSS, and the serial input data synchronously with the slave’s
system clock.
23.6. SPI Special Function Registers
SPI0 is accessed and controlled through four special function registers in the system controller: SPI0CN
Control Register, SPI0DAT Data Register, SPI0CFG Configuration Register, and SPI0CKR Clock Rate
Register. The four special function registers related to the operation of the SPI0 Bus are described in the
following figures.
222
SCK
(CKPOL=0, CKPHA=0)
SCK
(CKPOL=0, CKPHA=1)
SCK
(CKPOL=1, CKPHA=0)
SCK
(CKPOL=1, CKPHA=1)
MISO/MOSI
Figure 23.5. Data/Clock Timing Relationship
MSB
Bit 6
Bit 5
Rev. 1.1
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
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