參數(shù)資料
型號: BT849A
英文描述: Single-Chip Video Capture for PCI
中文描述: 單芯片的PCI視頻捕捉
文件頁數(shù): 60/141頁
文件大?。?/td> 1149K
代理商: BT849A
Bt848/848A/849A
Single-Chip Video Capture for PCI
Brooktree
50
F
UNCTIONAL
D
ESCRIPTION
DMA Controller
L848A_A
Table 11. RISC Instructions
(1 of 4)
Instruction
Opcode
DWORDs
Description
WRITE
0001
2
Write packed mode pixels to memory from the FIFO beginning at the specified
target address.
DWORD0:
[11:0]
Byte Count
[15:12]
Byte Enables
[23:16]
Reset/Set RISC_STATUS
[24]
IRQ
[25]
Reserved
[26]
EOL
[27]
SOL
[31:28]
Opcode
DWORD1:
[31:0]
32-bit Target Address
Byte Address of first pixel byte.
WRITE123
1001
5
Write pixels to memory in planar mode from the FIFOs beginning at the speci-
fied target addresses.
DWORD0:
[11:0]
Byte Count #1
Byte transfer count from FIFO1
[15:12]
Byte Enables
[23:16]
Reset/Set RISC_STATUS
[24]
IRQ
[25]
Reserved
[26]
EOL
[27]
SOL
[31:28]
Opcode
DWORD1:
[11:0]
Byte Count #2
Byte transfer count from FIFO2
[27:16]
Byte count #3
Byte transfer count from FIFO3
DWORD2:
[31:0]
32-bit Target Address
Byte Address for Y data from FIFO1
DWORD3:
[31:0]
32-bit Target Address
Byte Address for Cb data from FIFO2
DWORD4:
[31:0]
32-bit Target Address
Byte Address for Cr data from FIFO3
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