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參數(shù)資料
| 型號： | SAA7348GP |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | All Compact Disc Engine ACE |
| 中文描述： | 8-BIT, MROM, 35 MHz, MICROCONTROLLER, PQFP100 |
| 文件頁數(shù)： | 27/60頁 |
| 文件大小： | 205K |
| 代理商： | SAA7348GP |
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1997 Jul 11
27
Philips Semiconductors
Preliminary specification
All Compact Disc Engine (ACE)
SAA7348GP
8.1.4
S
ERVO
S
TATUS
R
EGISTER
(STR)
The Servo Status Register holds high level status information on the servo system. The information is latched into a
register and cleared whenever the register is read. This information could be a trigger to initiate a recovery. The register
is byte addressable; read only.
Table 15
Servo status register (address 0XE9H)
Table 16
Description of STR bits
The Srv_tl0 and Srv_tl1 signals can be used to determine in which direction the servo is counting during a jump
execution.
Table 17
Servo jump modes
7
6
5
4
3
2
1
0
Srv_tl1
Srv_tl0
Srv_shock
Srv_hf_present
Srv_FIFO_ov
Srv_fock
Srv_otd_inp
Srv_subc
BIT
SYMBOL
DESCRIPTION
7
6
5
Srv_tl1
Srv_tl0
Srv_shock
internal servo signal; see Table 17
internal servo signal; see Table 17
shock: decoder status signal; Motstart2 + PLL_phase_lock + Motor-ov + FOCOK +
OTD
Srv_hf_present HF_present: internal decoder signal; indicates if laser spot is in a recorded area
Srv_FIFO_ov
FIFO_OV: decoder status signal; FIFO overflow occurred
Srv_fock
FOCOK: servo output signal; focus OK/OK
Srv_otd_inp
OTD: servo output signal; laser spot on/off track
Srv_subc
subcode found: decoder status signal; subcode present in servo buffer
4
3
2
1
0
Srv_tl1
Srv_tl0
DESCRIPTION
0
0
1
1
0
1
0
1
protected mode
fast jump_1
slow jump
fast jump_2
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SAA7350 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:20-BIT INPUT BITSTREAM CONVERSION DAC FOR DIGITAL AUDIO SYSTEMS |
| SAA7356HL | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:1394 SBP-2 link layer controller |
| SAA7360 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Bitstream conversion ADC for digital audio systems |
| SAA7360GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Bitstream conversion ADC for digital audio systems |
| SAA7360GPB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 18-Bit |
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