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AT43USB326 Datasheet(PDF) 27 Page - ATMEL Corporation

Part # AT43USB326
Description  Multimedia USB Keyboard Controller with Embedded Hub
PDF  102 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT43USB326 Datasheet(HTML) 27 Page - ATMEL Corporation

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AT43USB326
3313D–USB–04/06
MCU Control Register – MCUCR
• Bit 7, 6 – Res: Reserved Bits
• Bit 5 – SE: Sleep Enable
The SE bit must be set (1) to make the MCU enter the sleep mode when the SLEEP instruc-
tion is executed. To avoid the MCU entering the sleep mode, unless it is the programmer's
purpose, it is recommended to set the Sleep Enable SE bit just before the execution of the
SLEEP instruction.
• Bit 4 – SM: Sleep Mode
This bit selects between the two available sleep modes. When SM is cleared (zero), Idle Mode
is selected as Sleep Mode. When SM is set (1), Power Down mode is selected as sleep mode.
The AT43USB326 does not support the Idle Mode and SM should always be set to one when
entering the Sleep Mode.
• Bit 3:0 – Res: Reserved Bits
Bit
7
6
5
4
3
2
1
0
$35 ($55)
SE
SM
MCUCR
Read/Write
R
R
R/W
R/W
R
R
R
R
Initial Value
0
0
0
0
0
0
0
0



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