參數(shù)資料
型號: CY7C67200
廠商: Cypress Semiconductor Corp.
英文描述: EZ-OTG Programmable USB On-The-Go Host/Peripheral Controller(EZ-OTG可編程USB On-The-Go主機(jī)/外圍設(shè)備控制器)
中文描述: 的EZ - OTG公司可編程的USB On - The - Go的主機(jī)/外設(shè)控制器(的EZ - OTG公司可編程的USB On - The - Go的主機(jī)/外圍設(shè)備控制器)
文件頁數(shù): 62/82頁
文件大?。?/td> 1719K
代理商: CY7C67200
CY7C67200
Document #: 38-08014 Rev. *F
Page 62 of 82
CRC Enable
(Bit 13)
The CRC Enable bit enables or disables the CRC operation.
1:
Enables CRC operation
0:
Disables CRC operation
CRC Clear
(Bit 12)
The CRC Clear bit will clear the CRC with a load of all ones. This bit is self clearing and always reads ‘0’.
1:
Clear CRC with all ones
0:
No Function
Receive CRC
(Bit 11)
The Receive CRC bit determines whether the receive bit stream or the transmit bit stream is used for the CRC data input in full
duplex mode. This bit is a don’t care in half duplex mode.
1:
Assigns the receive bit stream
0:
Assigns the transmit bit stream
One in CRC
(Bit 10)
The One in CRC bit is a read only bit that indicates if the CRC value is all zeros or not.
1:
CRC value is not all zeros
0:
CRC value is all zeros
Zero in CRC
(Bit 9)
The Zero in CRC bit is a read only bit that indicates if the CRC value is all ones or not.
1:
CRC value is not all ones
0:
CRC value is all ones
Reserved
All reserved bits must be written as ‘0’.
8.10.7
SPI CRC Value Register
[0xC0D4] [R/W]
Figure 8-71. SPI CRC Value Register
Register Description
The SPI CRC Value register contains the CRC value.
CRC
(Bits [15:0])
The CRC field contains the SPI CRC. In CRC Mode CRC7, the CRC value will be a seven bit value [6:0]. Therefore bits [15:7]
are invalid in CRC7 mode.
Bit #
15
14
13
12
11
10
9
8
Field
CRC...
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
1
1
1
1
1
1
1
1
Bit #
7
6
5
4
3
2
1
0
Field
...CRC
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
1
1
1
1
1
1
1
1
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