C8051F001 Silicon Laboratories Inc, C8051F001 Datasheet - Page 129
C8051F001
Manufacturer Part Number
C8051F001
Description
IC 8051 MCU 32K FLASH 48TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F00xr
Specifications of C8051F001
Core Processor
8051
Core Size
8-Bit
Speed
20MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 8x12b, D/A 2x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-TQFP, 48-VQFP
Data Bus Width
8 bit
Data Ram Size
256 B
Interface Type
SMBus, SPI, UART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
16
Number Of Timers
16 bit
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 8 Channel
On-chip Dac
12 bit, 2 Channel
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No
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129
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Bits7-0: SCR7-SCR0: SPI Clock Rate
Bits7-0: SPI0DAT: SPI0 Transmit and Receive Data.
SCR7
R/W
R/W
Bit7
Bit7
These bits determine the frequency of the SCK output when the SPI module is
configured for master mode operation. The SCK clock frequency is a divided down
version of the system clock, and is given in the following equations:
f
The SPI0DAT register is used to transmit and receive SPI data. Writing data to SPI0DAT
places the data immediately into the shift register and initiates a transfer when in Master
Mode. A read of SPI0DAT returns the contents of the receive buffer.
SCK
= 0.5 * f
SCR6
R/W
R/W
Bit6
Bit6
SYSCLK
Figure 17.7. SPI0CKR: SPI Clock Rate Register
SCR5
Figure 17.8. SPI0DAT: SPI Data Register
R/W
R/W
Bit5
Bit5
/ (SPI0CKR + 1),
SCR4
R/W
R/W
Bit4
Bit4
Rev. 1.7
SCR3
R/W
R/W
Bit3
Bit3
for 0 SPI0CKR 255,
SCR2
R/W
R/W
Bit2
Bit2
SCR1
R/W
R/W
Bit1
Bit1
SCR0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
Reset Value
00000000
00000000
0x9D
0x9B