at85c51snd3 ATMEL Corporation, at85c51snd3 Datasheet - Page 117
at85c51snd3
Manufacturer Part Number
at85c51snd3
Description
At85c51snd3 Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
Manufacturer
ATMEL Corporation
Datasheet
1.AT85C51SND3.pdf
(271 pages)
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7632D–MP3–01/07
Reset Value = 0000 0000b
Table 115. UDADDR Register
UDADDR (1.DBh) – USB Device Address Register
Reset Value = 0000 0000b
Table 116. UDFNUMH Register
UDFNUMH (1.DCh) – USB Device Frame Number High Register
Reset Value = 0000 0000b
Table 117. UDFNUML Register
UDFNUML (1.DDh) – USB Device Frame Number Low Register
Number
Number
Number
ADDEN
FNUM7
6-0
7-3
2-0
Bit
Bit
Bit
0
7
7
7
7
-
Mnemonic Description
Mnemonic Description
Mnemonic Description
FNUM10:8
UADD6:0
ADDEN
SUSPE
UADD6
FNUM6
Bit
Bit
Bit
6
6
6
-
-
Suspend Interrupt Enable Bit
Set to enable the SUSPI interrupt.
Clear to disable the SUSPI interrupt.
Address Enable Bit
Set to activate the UADD (USB address).
Cleared by hardware. Clearing by software has no effect.
See Section “Address Setup” for more details.
USB Address Bits
Set to configure the device address.
Shall not be cleared.
Reserved
The value read from these bits is always 0. Do not set these bits.
Frame Number Upper Flag
Set by hardware. These bits are the 3 MSB of the 11-bits Frame Number
information. They are provided in the last received SOF packet. FNUM is
updated if a corrupted SOF is received.
FNUM5
UADD5
5
5
5
-
UADD4
FNUM4
4
4
4
-
FNUM3
UADD3
3
3
3
-
FNUM10
UADD2
FNUM2
2
2
2
UADD1
FNUM9
FNUM1
1
1
1
FNUM8
FNUM0
UADD0
0
0
0
117
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