at91sam9263 ATMEL Corporation, at91sam9263 Datasheet - Page 799
at91sam9263
Manufacturer Part Number
at91sam9263
Description
At91 Arm Thumb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet
1.AT91SAM9263.pdf
(1065 pages)
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40.5.8
Register Name:
Access Type:
• MFD: Management Frame Done
The PHY maintenance register has completed its operation. Cleared on read.
• RCOMP: Receive Complete
A frame has been stored in memory. Cleared on read.
• RXUBR: Receive Used Bit Read
Set when a receive buffer descriptor is read with its used bit set. Cleared on read.
• TXUBR: Transmit Used Bit Read
Set when a transmit buffer descriptor is read with its used bit set. Cleared on read.
• TUND: Ethernet Transmit Buffer Underrun
The transmit DMA did not fetch frame data in time for it to be transmitted or hresp returned not OK. Also set if a used bit
is read mid-frame or when a new transmit queue pointer is written. Cleared on read.
• RLE: Retry Limit Exceeded
Cleared on read.
• TXERR: Transmit Error
Transmit buffers exhausted in mid-frame - transmit error. Cleared on read.
• TCOMP: Transmit Complete
Set when a frame has been transmitted. Cleared on read.
• ROVR: Receive Overrun
Set when the receive overrun status bit gets set. Cleared on read.
• HRESP: Hresp not OK
Set when the DMA block sees a bus error. Cleared on read.
• PFR: Pause Frame Received
Indicates a valid pause has been received. Cleared on a read.
6249D–ATARM–20-Dec-07
TCOMP
31
23
15
–
–
–
7
Interrupt Status Register
TXERR
30
22
14
EMAC_ISR
Read/Write
–
–
–
6
RLE
PTZ
29
21
13
–
–
5
TUND
PFR
28
20
12
–
–
4
HRESP
TXUBR
27
19
11
–
–
3
AT91SAM9263 Preliminary
RXUBR
ROVR
26
18
10
–
–
2
RCOMP
25
17
–
–
9
–
1
MFD
24
16
–
–
8
–
0
799
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