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參數(shù)資料
| 型號： | SAA7378GP |
| 廠商： | NXP Semiconductors N.V. |
| 英文描述： | Single Chip Digital Servo Processor and Compact Disc Decoder |
| 中文描述： | 單片機數(shù)字伺服處理器和光盤解碼器 |
| 文件頁數(shù)： | 29/45頁 |
| 文件大小： | 224K |
| 代理商： | SAA7378GP |
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Philips Semiconductors
Preliminary specification: Version 1.0
May 1995
29
Digital Servo Processor and Compact Disc Decoder (CD7)
SAA7378GP
between the SILD pulses.
9.5
A read data command is used to transfer data (status information) to the microprocessor, using the protocol shown in Figure
27. The first byte written determines the type of command. After this byte a variable number of bytes can be read.
Note that: - RAB must be held low.
- After the end of a read command there must be a delay of 65
μ
s before a write command is started.
- There must be a minimum time of 65
μ
s between SILD pulses.
Read Servo Commands
Figure 25
Microprocessor Protocol for Write Servo Commands
SILD (
μ
P)
SCL (
μ
P)
SDA (
μ
P)
SDA (SAA7378)
Hi-impedance
D7
D6
D5
D4
D3
D2
D1
D0
Command or Data byte
SILD (
μ
P)
Command
Data1
Data2
Data3
SDA (
μ
P)
Microprocessor write (one byte : command or data)
Microprocessor write (full command)
SDA (
μ
P)
Figure 26 Microprocessor Protocol for Repeated Data in Write Servo Commands
SILD (
μ
P)
Command
Data1
Microprocessor write (full command)
SILD (
μ
P)
SCL (
μ
P)
SDA (
μ
P)
D7
D6
D5
D4
D3
D2
D1
D0
Figure 27 Microprocessor Protocol for Read Servo Commands
Data byte
SDA (SAA7378)
Command
SDA (SAA7378)
Microprocessor read (one data byte)
Microprocessor read (full command)
SILD (
μ
P)
Data1
Data2
Data3
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| SAA7380 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7380GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7381 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:ATAPI CD-R block decoder |
| SAA7382 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
| SAA7382GP | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Error correction and host interface IC for CD-ROM ELM |
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