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7641 Datasheet(PDF) 360 Page - Renesas Technology Corp

Part # 7641
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  385 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7641 Datasheet(HTML) 360 Page - Renesas Technology Corp

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Rev.2.00
Aug 28, 2006
page 81 of 108
7641 Group
REJ09B0336-0200
APPENDIX
3.5 Control registers
USB frame number register Low
b7 b6 b5 b4 b3 b2 b1 b0
USB frame number register Low
(USBSOFL : address 5616)
b
0
1
2
4
Name
0
Functions
At reset R W
0
0
0
0
FN1
FN3
FN4
FN2
5
0
FN5
6
7
0
FN6
FN7
0
FN0
3
Contains the low-order 8 bits of SOF
token frame number.
✕
✕
✕
✕
✕
✕
✕
✕
USB frame number register High
b7 b6 b5 b4 b3 b2 b1 b0
USB frame number register High
(USBSOFH : address 5716)
b
0
1
2
4
Name
0
Functions
At reset R W
0
0
0
0
FN9
FN10
5
0
6
7
0
0
FN8
3
Contains the high-order 3 bits of SOF
token frame number.
✕
✕
✕
✕
✕
✕
✕
✕
Nothing is arranged for these bits. These are write disable bits. When
these bits are read out, the contents are “0”.
Fig. 3.5.53 Structure of USB frame nmber registers Low, High



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