Owners manual

Memory
H3 Datasheet(Revision1.2) Copyright© 2015 Allwinner Technology Co.,Ltd.All Rights Reserved. Page 401
CRC in data[4] from card/eMMC.In DDR mode,the higher 16 bits indicate the
CRC of even data,and the lower 16bits indicate the CRC of odd data.In SDR
mode,the higher of 16 bits indicate the CRC of all data.
5.3.7.33. SD Data3 CRC Register (Default Value: 0x00000000)
Offset: 0x0124
Register Name: DATA3_CRC_REG
Bit
R/W
Default/Hex
Description
31:0
R
0
DATA3_CRC
Data[3] CRC
CRC in data[3] from card/eMMC.
In 8bit DDR mode,the higher 16 bits indicate the CRC of even data,and the
lower 16bits indicate the CRC of odd data.
In 4 bit DDR mode,the higher of 16 bits indicate the CRC of odd data, ,and
the lower 16bits indicate the CRC of even data.
In SDR mode,the higher of 16 bits indicate the CRC of all data.
5.3.7.34. SD Data2 CRC Register (Default Value: 0x00000000)
Offset: 0x0128
Register Name: DATA2_CRC_REG
Bit
R/W
Default/Hex
Description
31:0
R
0
DATA2_CRC
Data[2] CRC
CRC in data[2] from card/eMMC.
In 8bit DDR mode,the higher 16 bits indicate the CRC of even data,and the
lower 16bits indicate the CRC of odd data.
In 4 bit DDR mode,the higher of 16 bits indicate the CRC of odd data, ,and
the lower 16bits indicate the CRC of even data.
In SDR mode,the higher of 16 bits indicate the CRC of all data.
5.3.7.35. SD Data1 CRC Register (Default Value: 0x00000000)
Offset: 0x012c
Register Name: DATA1_CRC_REG
Bit
R/W
Default/Hex
Description
31:0
R
0
DATA1_CRC
Data[1] CRC
CRC in data[1] from card/eMMC.
In 8bit DDR mode,the higher 16 bits indicate the CRC of even data,and the
lower 16bits indicate the CRC of odd data.
In 4 bit DDR mode,the higher of 16 bits indicate the CRC of odd data, ,and
the lower 16bits indicate the CRC of even data.
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