參數(shù)資料
型號： 935242220557
廠商： NXP SEMICONDUCTORS
元件分類： 消費(fèi)家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP208
封裝： PLASTIC, SOT-316, SQFP-208
文件頁數(shù)： 65/148頁
文件大小： 692K
代理商： 935242220557
1998 Apr 09
23
Philips Semiconductors
Product specication
Multimedia bridge, high performance
Scaler and PCI circuit (SPCI)
SAA7146A
28
RW2
2
RW
Species the data stream direction of FIFO 2. A logic 0 enables a write
operation to the PCI memory. A logic 1 enables a read operation from the
PCI memory.
Swap2
1 and 0
RW
endian swapping of all Dwords passing the FIFO 2:
00 = no swap
01 = two byte swap (3210 to 2301)
10 = four byte swap (3210 to 0123)
11 = reserved
2C
NumLines2
27 to 16
RW
Number of lines per eld: in read mode NumLines denes the number of
lines to be read from system memory. A logic 0 species one line. In write
mode this register is not used.
NumBytes2
11 to 0
RW
Number of bytes per line: in read mode this denes the number of bytes
per line to be read from system memory. A logic 0 species one byte. In
write mode this register is not used.
30
BaseOdd3
31 to 0
RW
PCI base address for odd elds of the upper (or lower if top-down ip is
selected) left pixel of the transferred eld
34
BaseEven3
31 to 0
RW
PCI base address for even elds of the upper (or lower if top-down ip is
selected) left pixel of the transferred eld
38
ProtAddr3
31 to 2
RW
protection address
1 and 0
reserved
3C
Pitch3
31 to 0
RW
distance between the start addresses of two consecutive lines of a eld
40
Page3
31 to 12
RW
base address of the page table (see Section 7.2.4)
ME3
11
RW
mapping enable; this bit enables the MMU
10 to 8
reserved
Limit3
7 to 4
RW
interrupt limit; denes the size of the memory range, that raise an
interrupt, if its boundaries are passed
PV3
3
RW
protection violation handling
RW3
2
RW
Species the data stream direction of FIFO 3. A logic 0 enables a write
operation to the PCI memory. A logic 1 enables a read operation from the
PCI memory.
Swap3
1 and 0
RW
endian swapping of all Dwords passing the FIFO 3:
00 = no swap
01 = two byte swap (3210 to 2301)
10 = four byte swap (3210 to 0123)
11 = reserved
44
NumLines3
27 to 16
RW
Number of lines per eld: in read mode NumLines denes the number of
lines to be read from system memory. A logic 0 species one line. In write
mode it denes the number of qualied lines to be processed by the BRS
per eld. This will cut off all the following input-lines at the BRS input.
NumBytes3
11 to 0
RW
Number of bytes per line: in read mode this denes the number of bytes
per line to be read from system memory. A logic 0 species 1 byte. In write
mode it denes the number of qualied bytes to be processed by the BRS
per line. This will cut off all the following bytes at the BRS input.
OFFSET
(HEX)
NAME
BIT
TYPE
DESCRIPTION
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