參數(shù)資料
型號: TVP3010M
廠商: Texas Instruments, Inc.
英文描述: Video Interface Palette
中文描述: 視頻接口面板
文件頁數(shù): 67/90頁
文件大小: 491K
代理商: TVP3010M
2–51
2.16.15 CRC LSB and MSB Registers
The CRC LSB and MSB registers (Table 2–33) are used to read the result of the 16-bit CRC calculation (see
subsection 2.9.1). These registers are not initialized and may be read from by the MPU at any time. Note,
however, that they are only updated on the rising edge of the second HSYNC during vertical retrace.
CRCLSB and CRCMSB are cascaded to form a 16-bit CRC-calculation remainder.
Table 2–33. CRC MSB and LSB Registers
CRC MSB
CRC LSB
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
D7
D6
D5
D4
D3
D2
D1
D0
CRC Remainder
R15
R14
R13
R12
R11
R10
R9
R8
R7
R6
R5
R4
R3
R2
R1
R0
Index = 3Dh
Index = 3Ch
2.16.16 CRC Control Register
The CRC control register is a write-only register used to specify on which of the 24 DAC-data lines the 16-bit
CRC should be calculated (see subsection 2.9.1). This register is not initialized and may be written to by
the MPU at any time. The CRC control register data format is shown in Table 2–34.
Table 2–34. CRC Control Register Format
CRC CONTROL REGISTER
Data Bit
D7
D6
D5
D4
D3
D2
D1
D0
Select Data
0
0
0
D4
D3
D2
D1
D0
Index = 3Eh
Values from 00 (hex) to 17 (hex) may be written into the CRC control register.
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