Atmel AT85DVK-07 Spezifikationen PDF herunterladen (Seite 142)

142

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

Table 143. UPCFG1X Register

UPCFG1X (1.CDh) – USB Pipe Configuration 1 Register

7 6 5 4 3 2 1 0

- PSIZE2 PSIZE1 PSIZE0 PBK1 PBK0 ALLOC -

Bit

Number

Bit

Mnemonic

Description

7 -

Reserved

The value read from this bit is always 0. Do not set this bit.

6-4 PSIZE2:0

Pipe Size

Select the size of the Pipe:

- 000: 8

- 001: 16

- 010: 32

- 011: 64

- 100: 128

- 101: 256

- 110: 512

- 111: 1024

3-2 PBK1:0

Pipe Bank

Select the number of bank to declare for the current Pipe.

- 00: 1 bank

- 01: 2 banks

- 10: invalid

- 11: invalid

1 ALLOC

Configure Pipe Memory

Set to configure the pipe memory with the characteristics.

Clear to update the memory allocation. Refer to the Memory Management

chapter for more details.

0 -

Reserved

The value read from these bits is always 0. Do not set these bits.

Table 144. UPCFG2X Register

UPCFG2X (1.CFh) – USB Pipe Configuration 2 Register

7 6 5 4 3 2 1 0

INTFRQ7 INTFRQ6 INTFRQ5 INTFRQ4 INTFRQ3 INTFRQ2 INTFRQ1 INTFRQ0

Bit

Number

Bit

Mnemonic

Description

7-0 INTFRQ7:0

Interrupt Pipe Request Frequency

These bits are the maximum value in millisecond of the pulling period for an

Interrupt Pipe.

This value has no effect for a non-Interrupt Pipe.

1 2 ... 137 138 139 140 141 142 143 144 145 146 147 ... 262 263

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