AM79C973BKD AMD (ADVANCED MICRO DEVICES), AM79C973BKD Datasheet - Page 147

• Manufacturer Part Number: AM79C973BKD
• Manufacturer: AMD (ADVANCED MICRO DEVICES)

Specifications of AM79C973BKD

• Lead Free Status / RoHS Status: Compliant

CSR60: Previous Transmit Descriptor Address
Lower
Bit
31-16 RES
SWSTYLE
All Other
Name
[7:0]
00h
01h
02h
03h
Reserved locations. Written as
zeros and read as undefined.
Description
LANCE/
PCnet-ISA
controller
RES
PCnet-PCI
controller
PCnet-PCI
controller
Reserved
Name
Style
P R E L I M I N A R Y
Table 25. Software Styles
Am79C973/Am79C975
Undefined
SSIZE32
0
1
1
1
15-0
16-bit software structures,
non-burst or burst access
RES
32-bit software structures,
non-burst or burst access
32-bit software structures,
non-burst or burst access
Undefined
Initialization Block
PXDAL
Entries
Contains the lower 16 bits of the
previous transmit descriptor ad-
dress pointer. The Am79C973/
Am79C975 controller has the ca-
pability to stack multiple transmit
frames.
Read/Write accessible only when
either the STOP or the SPND bit
is set. These bits are unaffected
by H_RESET, S_RESET, or
STOP.
16-bit software structures,
non-burst access only
RES
32-bit software structures,
non-burst access only
32-bit software structures,
non-burst or burst access
Undefined
Descriptor Ring Entries
147