Atmel AT85DVK-07 Spezifikationen PDF herunterladen (Seite 141)

141

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

5 INMODE

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.

4 AUTOSW

Auto Switch Bank

Set this bit to allow the auto switch bank mode for this Pipe.

Clear this bit to otherwise.

3 RSTDT

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.

2 PNUMS

Pipe Number Select Bit

Set to configure the PNUM used by the DFC.

Clear to configure the PNUM used by the CPU.

1 DFCRDY

DFC Ready Bit

Set to resume/enable the DFC interface.

Clear to pause the DFC interface.

0 PEN

Pipe Enable

Set to enable the Pipe.

Clear to disable and reset the Pipe.

Table 142. UPCFG0X Register

UPCFG0X (1.CCh) – USB Pipe Configuration 0 Register

7 6 5 4 3 2 1 0

PTYPE1 PTYPE0 PTOKEN1 PTOKEN0 PEPNUM3 PEPNUM2 PEPNUM1 PEPNUM0

Bit

Number

Bit

Mnemonic

Description

7-6 PTYPE1:0

Pipe Type

Select the type of the Pipe:

- 00: Control

- 01: Isochronous

- 10: Bulk

- 11: Interrupt

5-4 PTOKEN1:0

Pipe Token

Select the Token to associate to the Pipe:

- 00: SETUP

- 01: IN

- 10: OUT

- 11: reserved

3-0 PEPNUM3:0

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.

Bit

Number

Bit

Mnemonic Description

1 2 ... 136 137 138 139 140 141 142 143 144 145 146 ... 262 263

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