C8051F411-GMR Silicon Laboratories Inc, C8051F411-GMR Datasheet - Page 125

• Manufacturer Part Number: C8051F411-GMR
• Description: Microcontrollers (MCU) 50 MIPS 32KB 12ADC RTCLOCK 28 PIN MCU
• Manufacturer: Silicon Laboratories Inc

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

Bits 7–5: UNUSED. Read = 0b. Write = don’t care.
Bit 4:
Bit 3:
Bit 2:
Bits 1–0: CRC0PNT. CRC0 Result Pointer.
Bits 7–0: CRC0IN: CRC Data Input
R/W
Bit7
Bit7
R
-
CRC0SEL: CRC0 Polynomial Select Bit.
0: CRC0 uses the 32-bit polynomial 0x04C11DB7 for calculating the CRC result. 
1: CRC0 uses the 16-bit polynomial 0x1021 for calculating the CRC result.
CRC0INIT: CRC0 Result Initialization Bit.
Writing a ‘1’ to this bit initializes the entire CRC result based on CRC0VAL.
CRC0VAL: CRC0 Set Value Select Bit
This bit selects the set value of the CRC result.
0: CRC result is set to 0x00000000 on write of ‘1’ to CRC0INIT.
1: CRC result is set to 0xFFFFFFFF on write of ‘1’ to CRC0INIT.
These bits specify which byte of the CRC result will be read/written on the next access to
CRC0DAT. The value of these bits will auto-increment upon each read or write.
For CRC0SEL = 0:
00: CRC0DAT accesses bits 7–0 of the 32-bit CRC result.
01: CRC0DAT accesses bits 15–8 of the 32-bit CRC result.
10: CRC0DAT accesses bits 23–16 of the 32-bit CRC result.
11: CRC0DAT accesses bits 31–24 of the 32-bit CRC result.
For CRC0SEL = 1:
00: CRC0DAT accesses bits 7–0 of the 16-bit CRC result.
01: CRC0DAT accesses bits 15–8 of the 16-bit CRC result.
10: CRC0DAT accesses bits 7–0 of the 16-bit CRC result.
11: CRC0DAT accesses bits 15–8 of the 16-bit CRC result.
Each write to CRCIN results in the written data being computed into the existing CRC result.
R/W
Bit6
Bit6
R
-
SFR Definition 14.2. CRC0IN: CRC0 Data Input
SFR Definition 14.1. CRC0CN: CRC0 Control
R/W
Bit5
Bit5
R
-
CRC0SEL CRC0INIT CRC0VAL
R/W
R/W
Bit4
Bit4
Rev. 1.1
R/W
Bit3
Bit3
W
R/W
R/W
Bit2
Bit2
C8051F410/1/2/3
R/W
R/W
Bit1
Bit1
CRC0PNT
SFR Address:
SFR Address:
R/W
R/W
Bit0
Bit0
0x85
0x84
00000000
00000000
Reset Value
Reset Value
125