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7643 Datasheet(PDF) 398 Page - Renesas Technology Corp

Part # 7643
Description  8-BIT SINGLE-CHIP MICROCOMPUTER
PDF  424 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7643 Datasheet(HTML) 398 Page - Renesas Technology Corp

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7643 Group
REJ09B0133-0200
APPENDIX
3.5 Control registers
Rev.2.00
Aug 28, 2006
page 75 of 98
USB endpoint x OUT write count register
b7 b6 b5 b4 b3 b2 b1 b0
USB endpoint x (x=0 to 2) OUT write count register
(WRT_CNT : address 5D16)
b
0
1
2
4
Name
0
Functions
At reset R W
0
0
0
0
5
0
6
7
0
0
3
Contains the number of bytes in endpoint x OUT FIFO.
✕
✕
✕
✕
✕
✕
✕
✕
USB endpoint FIFO mode register
b7 b6 b5 b4 b3 b2 b1 b0
USB endpoint FIFO mode register
(USBFIFOMR : address 5F16)
b
0
1
2
Name
0
Functions
At reset R W
0
0
0
For endpoint 1
b3b2b1b0
✕ 0 0 0 : IN 128-byte, OUT 128-byte
For endpoint 2
b3b2b1b0
0 ✕ ✕ ✕ : IN 32-byte, OUT 32-byte
1 ✕ ✕ ✕ : IN 128-byte, OUT 128-byte
FIFO size selection bit
(Note)
0
0
0
0
3
4
5
6
7
Note: The value set into “x” is invalid.
Nothing is arranged for these bits. When these bits are read out, the
contents are undefined. These bits are “0” at write.
Fig. 3.5.47 Structure of USB endpoint x OUT write control register (x = 0 to 2)
Fig. 3.5.48 Structure of USB endpoint FIFO mode register



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