C8051F709-GQR Silicon Labs, C8051F709-GQR Datasheet - Page 211

• Manufacturer Part Number: C8051F709-GQR
• Description: 8-bit Microcontrollers - MCU 8kB 32B EEPROM Cap Sense
• Manufacturer: Silicon Labs

Specifications of C8051F709-GQR

• Rohs: yes
• Core: 8051
• Processor Series: C8051
• Data Bus Width: 8 bit

29. Cyclic Redundancy Check Unit (CRC0)
C8051F70x/71x devices include a cyclic redundancy check unit (CRC0) that can perform a CRC using a
16-bit or 32-bit polynomial. CRC0 accepts a stream of 8-bit data written to the CRC0IN register. CRC0
posts the 16-bit or 32-bit result to an internal register. The internal result register may be accessed indi-
rectly using the CRC0PNT bits and CRC0DAT register, as shown in Figure 29.1. CRC0 also has a bit
reverse register for quick data manipulation.
CRC0FLIP
CRC0FLIP
CRC0PNT1
CRC0PNT0
CRC0SEL
CRC0INIT
CRC0VAL
Write
Read
Figure 29.1. CRC0 Block Diagram
CRC0IN
8
CRC Engine
Rev. 1.0
8
8
RESULT
4 to 1 MUX
32
8
8
8
Automatic CRC
8
Controller
C8051F70x/71x
CRC0AUTO
CRC0DAT
CRC0CNT
Memory
Flash
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