Filter
Top Products
Adapter Internal Registers
A-29
Register Definitions
Table A–13. MAC Protocol Selection Codes
Code MAC Protocol Selected
0xb0000000b CSMA/CD (802.3 -10/100M bps)
0b0000001b External protocol: Enhanced 802.3u interface for 802.12 – 100M bps
100VG-AnyLAN interface, with decreased priority determined by channel
Tx start-up timing hardwired at 50 cycles
0xb0000010b External protocol: Enhanced 802.3u interface for 802.12 – 100M bps
100VG-AnyLAN interface, with DP priority determined by frame CSTAT
Tx start-up timing hardwired at 50 cycles
0xb0000011b External protocol: Enhanced 802.3u interface for any network
Priority determined by frame CSTAT
Tx timing controlled by external device
0xb0000100b
–
0xb1111111b
Reserved
A.3.6 Manufacturing Test Register–ManTest @ 0x04 (DIO)
This 16-bit register is used for manufacturing test. The options controlled by
this register only take effect while the MTEST bit in the NetConfig register is
set. The functions controlled by this register are for Texas Instruments
manufacturing test only.
A.3.7 Default PCI Parameter Registers–@ 0x08–0x0C (DIO)
These eight read-only bytes indicate the default contents of the autoloadable
PCI configuration registers. These default values are loaded into the respec-
tive PCI configuration registers if autoload fails (bad checksum).
Figure A–5. Default PCI Parameter Register
DIO Address Byte 3 Byte 2 Byte 1 Byte 0
0x08
Default
device ID
(0x50) MSbyte
Default
device ID
(0x00) LSbyte
Default
vendor ID
(0X10)MSbyte
Default
vendor ID
(0x4c) Msbyte
0x0C Default
Max_Lat
(0x00)
Default
Min_Gnt
(0x00)
Default
subclass
(0x08)
Default
revision
(0x30)
†
The value of the Default revision register has changed from 23h for PG2.3 to 30h for PG3.03.