CHAPTER 25:Programmable CRC
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S6J3200 Series Hardware Manual Document Number: 002-04852 Rev. *G
2.
Configuration and Block Diagram
This section shows a block diagram of Programmable CRC
Figure 2-1 Block Diagram of Programmable CRC
3.
Operation of the Programmable CRC
This section describes operation of Programmable CRC in detail.
For more details on flowcharts for CRC operation see Section 3.1, on CRC calculation flow see Section
3.2, and on an example for CRC calculation see Section 3.3
3.1.
CRC Operation Flowcharts
The flowcharts Figure 3-1,
Figure 3-2 , and
Figure 3-3 show the steps to configure CRC registers and to perform a CRC calculation.
CRC registers
Programmable CRC module
CRC engine
generation
interface
32
32
32
Output inversion
DMA REQ
CRC buffer empty signal
32
32
IRQ
CRCn_CFG:ROBYT
AHB
DMA REQ
DMA ACK
32
32
32
CRCn_CFG:RIBIT
CRCn_CFG:RIBYT
CRCn_CFG:LEN
CRCn_CFG:SZ
CRCn_CFG:LOCK
CRCn_CFG:CIEN
CRCn_CFG:CIRQ
CRCn_CFG:CDEN
CRCn_SEED
CRCn_CFG
CRCn_WR
CRCn_POLY
CRCn_RD
CRCn_FXOR
Output bit/byte
Input bit/byte
reflection/swapping
reflection/swapping
CRC registers
CRCn_CFG:ROBIT
Summary of Contents for S6J3200 Series
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