AN983 ETC [List of Unclassifed Manufacturers], AN983 Datasheet - Page 54

• Manufacturer Part Number: AN983
• Description: PCI/miniPCI-to-Ethernet LAN Controller
• Manufacturer: ETC [List of Unclassifed Manufacturers]

TDES0
TDES1
TDES2
TDES3
Descriptor addresses must be longword alignment
7 . 4 . 2 . 2 . T r a n s m i t D e s c r i p t o r D e s c r i p t i o n s
TDES0
Bit #
31
30-24
23-22
21-16
15
14
13-12
11
10
9
8
7
6-3
2
1
0
TDES1
Bit #
31
30
29
28,27
26
Rev. 1.8
Own Status
Control
Buffer1 address
Buffer2 address
Name
OWN
---
UR
---
ES
TO
-----
LO
NC
LC
EC
HF
CC
-----
UF
DE
Name
IC
LS
FS
---
AC
Descriptions
Own bit
1: Indicate this descriptor is ready to transmit
0: No transmit data in this descriptor for transmission
Reserved
Under-run count
Reserved
Error summary, OR of the following bit
Transmit jabber time-out
Reserved
Loss carrier
No carrier
Late collision
Excessive collision
Heartbeat fail
Collision count
Reserved
Under-run error
Deferred
Descriptions
Interrupt completed
Last descriptor
First descriptor
Reserved
Disable add CRC function
1: under-run error
8: excessive collision
9: late collision
10: no carrier
11: loss carrier
14: jabber time-out
AN983B
Buffer2 byte-count
www.admtek.com.tw
ADMtek Inc.
PCI/miPCI Fast Ethernet Controller with integrated PHY
Buffer1 byte-count
54