at85c51snd3b ATMEL Corporation, at85c51snd3b Datasheet - Page 141

• Manufacturer Part Number: at85c51snd3b
• Description: Single-chip Digital Audio Decoder - Encoder With Usb 2.0 Interface
• Manufacturer: ATMEL Corporation

7632C–MP3–11/06
Reset Value = 0000 0000b
Table 142. UPCFG0X Register
UPCFG0X (1.CCh) – USB Pipe Configuration 0 Register
Reset Value = 0000 0000b
Number
PTYPE1
Number
7-6
5-4
3-0
Bit
Bit
5
4
3
2
1
0
7
PEPNUM3:0
PTOKEN1:0
Mnemonic Description
Mnemonic Description
PTYPE1:0
AUTOSW
DFCRDY
INMODE
PTYPE0
PNUMS
RSTDT
PEN
Bit
Bit
6
IN Request mode
Set this bit to allow the USB controller to perform infinite IN requests when the
Pipe is not frozen.
Clear this bit to perform a pre-defined number of IN requests. This number is
stored in the UINRQX register.
Auto Switch Bank
Set this bit to allow the auto switch bank mode for this Pipe.
Clear this bit to otherwise.
Reset Data Toggle
Set this bit to reset the Data Toggle to its initial value for the current Pipe.
Cleared by hardware when proceed. Clearing by software has no effect.
Pipe Number Select Bit
Set to configure the PNUM used by the DFC.
Clear to configure the PNUM used by the CPU.
DFC Ready Bit
Set to resume/enable the DFC interface.
Clear to pause the DFC interface.
Pipe Enable
Set to enable the Pipe.
Clear to disable and reset the Pipe.
Pipe Type
Select the type of the Pipe:
- 00: Control
- 01: Isochronous
- 10: Bulk
- 11: Interrupt
Pipe Token
Select the Token to associate to the Pipe:
- 00: SETUP
- 01: IN
- 10: OUT
- 11: reserved
Pipe Endpoint Number
Set this field according to the Pipe configuration. Set the number of the Endpoint
targeted by the Pipe. This value is from 0 and 15.
PTOKEN1
5
PTOKEN0
4
PEPNUM3
3
PEPNUM2
AT85C51SND3B
2
PEPNUM1
1
PEPNUM0
0
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