- 您現在的位置：買賣IC網 > PDF目錄360993 > ISD-300A1 Universal Serial Bus PDF資料下載
參數資料
| 型號： | ISD-300A1 |
| 英文描述： | Universal Serial Bus |
| 中文描述： | 通用串行總線 |
| 文件頁數： | 14/67頁 |
| 文件大小： | 580K |
| 代理商： | ISD-300A1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁當前第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁
ISD-300A1
9
October 19, 2001
Vendor-Specific Identify Data (FBh)
If an I
2
C memory device is not utilized, the ISD-300A1 must be configured to accept descriptor and
configuration data from an attached device using a vendor-specific identify command. (See
I_MODE Pin
on page 41)
For vendor specific identify data (FBh) to be deemed valid, it must pass the signature check (first two data
bytes must equal 0x4D54). In the event of a failed signature check, the ISD-300A1 will respond to all USB
GET_DESCRIPTOR or GET_CONFIGURATION commands by returning defaults contained in internal
ROM.
An example of vendor specific identify data (FBh) formatting is shown in
Appendix A – Example
EEPROM or FBh Identify Data Contents
on page 51.
ISD-300A1 Configuration/USB Descriptor Data Formatting
Data formatting for all ISD-300A1 configuration data and USB descriptor data is identical for internal
ROM, I
2
C memory device data, and vendor specific identify data (FBh). The following sections show how
the ISD-300A1 configuration data is mapped into address space. The
USB Interface
section on page 14
explains formatting of USB descriptor data.
ISD-300A1 Configuration Data
The ISD-300A1 Configuration Data is located at addresses 0x0 to 0xF of the Descriptor/Configuration data
contents. Configuration Data determine certain parameters and operational modes used by the ISD-300A1.
Any vendor specific USB command write operation to I
2
C memory device configuration space will
simultaneously update internal configuration register values as well. If the I
2
C memory device is
programmed without vendor specific USB commands, the ISD-300A1 must be asynchronously reset
(NRESET) before configuration data is reloaded.
Formatting is identical for the internal ROM, the I
2
C memory device, and FBh data. ISD-300A1
configuration data is loaded into internal registers, regardless of the original data source.
Address
Field Name
Description
On-board
ROM Defaults
0x0
I
2
C memory device
Signature (LSB)
I
2
C memory device
Signature (MSB)
Event Notification
LSB I
2
C memory device signature byte.
Register does not exist in HW
MSB I
2
C memory device signature byte.
Register does not exist in HW
ATAPI event notification command. Setting this field to 0x00 disables this
feature.
ATA Device Automatic Power Management Value. If an attached ATA
device supports APM and this field contains other than 0x00, the
Initialization state machines will issue a SET FEATURES command to
Enable APM with the register value during the drive initialization process.
Setting APM Value to 0x00 disables this functionality. This register value is
ignored with ATAPI devices.
Time in 128 millisecond granularity before the ISD-300A1 stops polling the
ALT STAT register for reset complete and restarts the reset process (0x80 =
16.4 seconds).
0x54
0x1
0x4D
0x2
0x00
0x3
APM Value
0x00
0x4
ATA Initialization
Timeout
0x80
相關PDF資料 |
PDF描述 |
|---|---|
| ISD-SR3000 | |
| ISD1100SERIES | ISD1110/ISD1112 Part2 |
| ISD1200SERIES | ISD1210/ISD1212 Part3 |
| ISD1400_1 | |
| ISD1400_2 | |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISD306T | 制造商:ADAM-TECH 制造商全稱:Adam Technologies, Inc. 功能描述:IC SOCKETS SINGLE & DUAL ROW SOCKETS |
| ISD328T | 制造商:ADAM-TECH 制造商全稱:Adam Technologies, Inc. 功能描述:IC SOCKETS SINGLE & DUAL ROW SOCKETS |
| ISD33000 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:單片語音錄放電路 |
| ISD33060 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Single-Chip Voice Record/Playback Devices 60-, 75-, 90-, and 120-Second Durations |
| ISD33060-4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述: |
發布緊急采購，3分鐘左右您將得到回復。