AT32UC3A0512_1 Datasheet, PDF (484/826 Pages) ATMEL Corporation – AVR32 32-Bit Microcontroller

AT32UC3A
29.7.26 User Input/Output Register
Register Name:
USRIO
Access Type:
Read/Write
31
30
29
28
27
26
25
24
–
–
–
–
–
–
–
–
23
22
21
20
19
18
17
16
–
–
–
–
–
–
–
–
15
14
13
12
11
10
9
8
–
–
–
–
–
–
–
–
7
6
5
4
3
2
1
0
–
–
–
–
TX_PAUSE_
ZERO
TX_PAUSE
EAM
RMII
• RMII
When set, this bit enables the MII operation mode. When reset, it selects the RMII mode.
• EAM
When set, this bit causes a frame to be copied to memory, if this feature is enabled by the EAE bit in NCFGR. Otherwise,
no frame is copied.
• TX_PAUSE
Toggling this bit causes a PAUSE frame to be transmitted.
• TX_PAUSE_ZERO
Selects either zero or the transmit quantum register as the transmitted pause frame quantum.
32058H–AVR32–03/09
484