Atmel AT85DVK-07 Spezifikationen PDF herunterladen (Seite 138)

138

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

0 DCONNE

Device Connection Interrupt Enable

Set this bit to enable the DCONNI interrupt.

Clear this bit to disable the DCONNI interrupt.

Table 135. UHADDR Register

UHADDR (1.DBh) – USB Host Address Register

7 6 5 4 3 2 1 0

- HADDR6 HADDR5 HADDR4 HADDR3 HADDR2 HADDR1 HADDR0

Bit

Number

Bit

Mnemonic

Description

7 -

Reserved

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

6-0 HADDR6:0

USB Host Address

These bits contains the address of the USB Device.

Table 136. UHFNUMH Register

UHFNUMH (1.DCh) – USB Host Frame Number High Register

7 6 5 4 3 2 1 0

- - - - - FNUM10 FNUM9 FNUM8

Bit

Number

Bit

Mnemonic

Description

7-4 -

Reserved

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

3-0 FNUM10:8

Frame Number

The value contained in tis register is the current SOF number.

This value can be modified by software.

Bit

Number

Bit

Mnemonic Description

1 2 ... 133 134 135 136 137 138 139 140 141 142 143 ... 262 263

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