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STR720 bảng dữ liệu(PDF) 289 Page - STMicroelectronics

tên linh kiện STR720
Giải thích chi tiết về linh kiện  ARM720T 16/32-BIT MCU WITH 16K RAM, USB, CAN, 3 TIMERS, ADC, 6 COMMUNICATIONS INTERFACES
PDF  401 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

STR720 bảng dữ liệu(HTML) 289 Page - STMicroelectronics

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STR720 - USB SLAVE INTERFACE (USB)
289/401
USB Device Address (USB_DADDR)
Address Offset: 4Ch
Reset Value: 0000 0000 0000 0000 (0000h)
This register is also reset when a USB reset is received from the USB bus or forced through
bit FRES in the USB_CNTR register.
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved
EF
ADD[6:0]
-
rw
rw
Bits 15:8
Reserved
These are reserved bits. These bits are always read as ‘0’ and must
always be written with ‘0’.
Bit 7
EF: Enable Function
This bit is set by the software to enable the USB device. The address of
this device is contained in the following ADD[6:0] bits. If this bit is at ‘0’ no
transactions are handled, irrespective of the settings of USB_EPnR
registers.
Bits 6:0
ADD[6:0]: Device Address
These bits contain the USB function address assigned by the host PC
during the enumeration process. Both this field and the Endpoint Address
(EA) field in the associated USB_EPnR register must match with the
information contained in a USB token in order to handle a transaction to
the required endpoint.
1



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