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AT43USB370 датащи(PDF) 13 Page - ATMEL Corporation

номер детали AT43USB370
подробное описание детали  USB 2.0 Full-Speed Host/Function Processor
PDF  50 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB370 датащи(HTML) 13 Page - ATMEL Corporation

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AT43USB370
3340B–USB–12/03
USBP_REQ_REG – Request Register
The USB processor writes in this register.
• Bit 7:0 - REQ_VALUE
Unique value of the request issued by the USB processor. The following definitions are valid.
• Bit 31:8 - RS
Reserved. Reset to zero by the USB processor.
This register is used by the USB processor to write the request code while issuing a request to
the system processor software. After power-up or reset, this register will contain the value of
0x00.
SYSP_CMDID_REG – Command ID Register (System Processor)
The system processor software writes in this register.
• Bit 7:0 - SCMD_ID
Command ID of the command referenced by the system processor software.
• Bit 31:8 - RS
Reserved. Must be reset to zero by the system processor software.
This register is used by the system processor software to write the Command ID of a particular
command issued earlier. This may be required where a reference to some previous command
is required while issuing the command. After power-up or reset, this register will contain the
value of 0x00.
Bit
31
8
7
0
0x04
RS
REQ_VALUE
USBP_REQ_REG
Read/Write
USB Processor
W
System Processor
R
Initial Value
0x0
Mode
Host/Device
Bit
31
8
7
0
0x08
RS
SCMD_ID
SYSP_CMDID_REG
Read/Write
USB Processor
R
System Processor
W
Initial Value
0x0
Mode
Host



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