Atmel AT85DVK-07 Spezifikationen PDF herunterladen (Seite 117)

117

AT85C51SND3Bx

7632A–MP3–03/06

Reset Value = 0000 0000b

0 SUSPE

Suspend Interrupt Enable Bit

Set to enable the SUSPI interrupt.

Clear to disable the SUSPI interrupt.

Table 115. UDADDR Register

UDADDR (1.DBh) – USB Device Address Register

7 6 5 4 3 2 1 0

ADDEN UADD6 UADD5 UADD4 UADD3 UADD2 UADD1 UADD0

Bit

Number

Bit

Mnemonic

Description

7 ADDEN

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.

6-0 UADD6:0

USB Address Bits

Set to configure the device address.

Shall not be cleared.

Table 116. UDFNUMH Register

UDFNUMH (1.DCh) – USB Device Frame Number High Register

7 6 5 4 3 2 1 0

- - - - - FNUM10 FNUM9 FNUM8

Bit

Number

Bit

Mnemonic

Description

7-3 -

Reserved

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

2-0 FNUM10:8

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.

Table 117. UDFNUML Register

UDFNUML (1.DDh) – USB Device Frame Number Low Register

7 6 5 4 3 2 1 0

FNUM7 FNUM6 FNUM5 FNUM4 FNUM3 FNUM2 FNUM1 FNUM0

Bit

Number

Bit

Mnemonic Description

1 2 ... 112 113 114 115 116 117 118 119 120 121 122 ... 262 263

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