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CY7C63723-PC 参数 Datasheet PDF下载

CY7C63723-PC图片预览
型号: CY7C63723-PC
PDF下载: 下载PDF文件 查看货源
内容描述: 的enCoRe USB的组合低速USB和PS / 2外围控制器 [enCoRe USB Combination Low-Speed USB & PS/2 Peripheral Controller]
分类和应用: 微控制器和处理器外围集成电路光电二极管可编程只读存储器时钟
文件页数/大小: 58 页 / 1162 K
品牌: CYPRESS [ CYPRESS ]
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FOR  
FOR  
enCoRe™ USB CY7C63722/23  
CY7C63743  
A 'TX 0 Byte' entry in the IN column means that the SIE will transmit a zero byte packet in response to any IN sent to the endpoint.  
Sending a 0 byte packet is to complete the status stage of a control transfer.  
An 'Ignore' means that the device sends no handshake tokens.  
An 'Accept' means that the SIE will respond with an ACK to a valid SETUP transaction.  
Comments Column:  
Some Mode Bits are automatically changed by the SIE in response to many USB transactions. For example, if the Mode Bits  
[3:0] are set to '1111' which is ACK IN-Status OUT mode as shown in Table 22-1, the SIE will change the endpoint Mode Bits [3:0]  
to NAK IN-Status OUT mode (1110) after ACKing a valid status stage OUT token. The firmware needs to update the mode for  
the SIE to respond appropriately. See Table 22-1 for more details on what modes will be changed by the SIE.  
Any SETUP packet to an enabled endpoint with mode set to accept SETUPs will be changed by the SIE to 0001 (NAKing). Any  
mode set to accept a SETUP will send an ACK handshake to a valid SETUP token.  
A disabled endpoint will remain disabled until changed by firmware, and all endpoints reset to the Disabled mode (0000). Firmware  
normally enables the endpoint mode after a SetConfiguration request.  
The control endpoint has three status bits for identifying the token type received (SETUP, IN, or OUT), but the endpoint must be  
placed in the correct mode to function as such. Non-control endpoints should not be placed into modes that accept SETUPs.  
Document #: 38-08022 Rev. **  
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