ST7263BK1 STMicroelectronics, ST7263BK1 Datasheet - Page 53

• Manufacturer Part Number: ST7263BK1
• Description: LOW SPEED USB 8-BIT MCU FAMILY WITH UP TO 32K FLASH/ROM, DFU CAPABILITY, 8-BIT ADC, WDG, TIMER, SCI and I2C
• Manufacturer: STMicroelectronics

Specifications of ST7263BK1

• 4, 8, 16 Or 32 Kbytes Program Memory: high density Flash (HDFlash), FastROM or ROM with Read-Out and Write protection

ST7263Bxx
10
Miscellaneous register
Miscellaneous register (MISCR)
Address: 0009h
Reset value: 0000 0000 (00h)
7
-
[7:3]
-
2
1
0
Reserved
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
0: Divide-by-2 disabled and CPU clock frequency is standard
1: Divide-by-2 enabled and CPU clock frequency is halved.
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.
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 (f
-
Doc ID 7516 Rev 8
-
36). The SMS bit has no effect on the USB frequency.
Read/write
-
CPU
on I/O port)
SMS
Miscellaneous register
USBOE
MCO
0
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