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ST7263BEx bảng dữ liệu(PDF) 53 Page - STMicroelectronics

tên linh kiện ST7263BEx
Giải thích chi tiết về linh kiện  Low speed USB 8-bit MCU family with up to 32 KB Flash/ROM, DFU capability, 8-bit ADC, WDG, timer, SCI and I²C
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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ST7263BEx bảng dữ liệu(HTML) 53 Page - STMicroelectronics

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ST7263Bxx
Miscellaneous register
Doc ID 7516 Rev 8
53/186
10
Miscellaneous register
Miscellaneous register (MISCR)
Address: 0009h
Reset value: 0000 0000 (00h)
7
0
--
--
-
SMS
USBOE
MCO
Read/write
[7:3]
Reserved
2
SMS Slow mode Select.
This bit is set by software and only cleared by hardware after a reset. If this
bit is set, it enables the use of an internal divide-by-2 clock divider (refer to
Figure 18 on page 36). The SMS bit has no effect on the USB frequency.
0: Divide-by-2 disabled and CPU clock frequency is standard
1: Divide-by-2 enabled and CPU clock frequency is halved.
1
USBOE USB enable.
If this bit is set, the port PC2 (PB1 on SO24) outputs the USB output enable
signal (at “1” when the ST7 USB is transmitting data).
Unused bits 7-4 are set.
0
MCO Main Clock Out selection
This bit enables the MCO alternate function on the PA0 I/O port. It is set and
cleared by software.
0: MCO alternate function disabled (I/O pin free for general-purpose I/O)
1: MCO alternate function enabled (fCPU on I/O port)



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