參數(shù)資料
型號(hào)： SAA8115HL
廠商： NXP SEMICONDUCTORS
元件分類(lèi)： 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(yè)數(shù)： 17/56頁(yè)
文件大?。?/td> 177K
代理商： SAA8115HL
2000 Jan 27
17
Philips Semiconductors
Preliminary specification
Digital camera USB interface
SAA8115HL
9
CONTROL REGISTER DESCRIPTION
This specification gives an overview of all registers.
9.1
SNERT (UART)
The SAA8115HL is partly controlled via SNERT. The frame rate converter, the SDRAM interface, the video formatter,
the compression engine, the PPG, the SMP and the audio functions are controlled via SNERT. This SNERT interface
works independently from the frame rate and can always be operated in the full frequency range.
Via SNERT the following registers are accessible (see Table 4).
Table 4
SNERT write registers SAA8115HL
9.1.1
G
ENERAL REGISTER
Table 5
Detailed description of SNERT general register 0x00
ADDRESS
FUNCTION
00
01 to 05
06 and 07
08 to 1A
1B to 1F
20 to 38
39 to 3C
3D and 3E
3F
write register soft reset (see Table 5)
write registers Frame Rate Converter (FRC) including the SDRAM interface
reserved
write registers Pulse Pattern Generator (PPG)
reserved
write registers video formatter and compression engine
reserved
write registers Switch Mode Power (SMP)
write register audio variable gain amplifier
BIT
SNERT REGISTER 00: SOFT_RESET
7
6
5
4
3
2
1
0
PARAMETER
X
X
X
X
X
reserved
RESET_VP_C
compression engine in reset state
compression engine operating
RESET_VP_VF
formatter engine in reset state
formatter engine operating
RESET_FRC
frame rate converter engine in reset state (by default)
frame rate converter engine operating
1
0
1
0
1
0
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