參數(shù)資料
型號: SAA8115HL
廠商: NXP SEMICONDUCTORS
元件分類: 消費(fèi)家電
英文描述: Digital Camera USB Interface(數(shù)字照相USB接口)
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP144
封裝: 20 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-486-1, LQFP-144
文件頁數(shù): 41/56頁
文件大?。?/td> 177K
代理商: SAA8115HL
2000 Jan 27
41
Philips Semiconductors
Preliminary specification
Digital camera USB interface
SAA8115HL
9.2.4
V
IDEO
FIFO
REGISTERS
Table 69
I
2
C-bus video FIFO registers overview
Table 70
Detailed description of I
2
C-bus video FIFO registers 0x04
Table 71
Detailed description of I
2
C-bus video FIFO registers 0x05
ADDRESS
VIDEO FIFO REGISTERS (BASE ADDRESS: 0x04)
0x04
0x05
0x06
0x07
FIFO offset (8 LSBs)
FIFO active and FIFO offset (3 MSBs)
packet size (8 LSBs)
read spacing and packet size (2 MSBs)
BIT
FIFO REGISTER 0x04: FIFO_OFFSET
7
6
5
4
3
2
1
0
PARAMETER
FIFO_OFFSET
mode_fifo_offset: sets the minimum contents of the FIFO that has to be
reached, before a new video frame will be put on the USB. This value can
be set between 0 and 2047. Total 11 bits with 8 LSBs in this register and
3 MSBs in register 0x05.
X
X
X
X
X
X
X
X
BIT
FIFO REGISTER 0x05: FIFO_ACTIVE AND FIFO_OFFSET
7
6
5
4
3
2
1
0
PARAMETER
FIFO_ACTIVE
mode_active: FIFO is active and the contents of the other mode registers
should not be updated by the microcontroller (maledictive)
FIFO not active
reserved
FIFO_OFFSET (MSBs)
3 MSBs of the offset value; see also register 0x04
1
0
X
X
X
X
X
X
X
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