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參數(shù)資料
| 型號： | PDIUSBH11D |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 總線控制器 |
| 英文描述： | Universal Serial Bus Hub |
| 中文描述： | UNIVERSAL SERIAL BUS CONTROLLER, PDSO32 |
| 封裝： | 7.50 MM, PLASTIC, SO-28 |
| 文件頁數(shù)： | 12/26頁 |
| 文件大?。?/td> | 146K |
| 代理商： | PDIUSBH11D |
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Philips Semiconductors
Product specification
PDIUSBH11
Universal Serial Bus Hub
1997 Aug 01
12
Clear Buffer
Command
: F2h
Data
: None
When a packet is received completely, an internal endpoint buffer full flag is set. All subsequent packets will be refused by returning a NACK.
When the microcontroller has read the data, it should free the buffer by the Clear Buffer command. When the buffer is cleared new packets will
be accepted.
Validate Buffer
Command
: FAh
Data
: None
When the microprocessor has written data into an IN buffer, it should set the buffer full flag by the Validate Buffer command. This indicates that
the data in the buffer are valid and can be sent to the host when the next IN token is received.
Set Endpoint Status
Command
: 40–44h
Data
: Write 1 byte
A stalled control endpoint is automatically unstalled when it receives a SETUP token, regardless of the content of the packet. If the endpoint
should stay in its stalled state, the microcontroller can re–stall it.
When a stalled endpoint is unstalled (either by the Set Endpoint Status command or by receiving a SETUP token), it is also re–initialized. This
flushes the buffer and if it is an OUT buffer it waits for a DATA 0 PID, if it is an IN buffer it writes a DATA 0 PID.
Even when unstalled, writing Set Endpoint Status to ‘0’ initializes the endpoint.
X
7
X
6
X
5
X
4
X
3
X
2
X
1
0
0
POWER ON VALUE
STALLED
RESERVED
STALLED A ‘1’ INDICATES THE ENDPOINT IS STALLED
SV00509
Acknowledge Setup
Command
: F1h
Data
: None
The arrival of a SETUP packet flushes the IN buffer and disables the Validate Buffer and Clear Buffer commands for both IN and OUT
endpoints.
The microcontroller needs to re–enable these commands by the Acknowledge Setup command. This ensures that the last SETUP packet stays
in the buffer and no packet can be sent back to the host until the microcontroller has acknowledged explicitly that it has seen the SETUP packet.
The microcontroller must send the Acknowledge Setup command to both the IN and OUT endpoints.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PDIUSBH11NB | Plug In Relay Switch Function:4PDT; Contact Carry Current:15A; Coil Voltage AC Max:120V; Mounting Type:Socket; Contact Carrying Power:0.9W; Contact Rating:3A; Relay Type:General Purpose RoHS Compliant: Yes |
| PDIUSBH12 | USB 2-port hub |
| PDIUSBH12D | USB 2-port hub |
| PDIUSBH12N | USB 2-port hub |
| PDIUSBP11A | Universal Serial Bus Transceiver(通用串行總線收發(fā)器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PDIUSBH11DB | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:BUS CONTROLLER |
| PDIUSBH11NB | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Universal Serial Bus Hub |
| PDIUSBH12 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:USB 2-port hub |
| PDIUSBH12D | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:USB 2-port hub |
| PDIUSBH12N | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:USB 2-port hub |
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