AN983 ETC [List of Unclassifed Manufacturers], AN983 Datasheet - Page 25

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

This register should be initialized before accessing the boot ROM space. (Write 32’hffffffff return 32’h
fffe0001)
CR13 (offset = 34h), CP - Capabilities Pointer.
CR15 (offset = 3ch), CI - Configuration Interrupt
CR16 (offset = 40h), DS - Driver Space for special purpose.
(offset = 80h), SIG - Signature of AN983B
0
Bit #
31~8
7~0
Bit #
31~24
23~16
15~ 8
7 ~ 0
Bit #
31~16
15~8
7 ~ 0
Bit #
31~16
15~0
Rev. 1.8
BRE
Name
---
CP
Name
ML
MG
IP
IL
Name
---
DS
---
Name
DID
VID
Boot ROM Enable. The AN983B really enables its boot ROM
access only if both the memory space access bit (bit 1 of
CR1) and this bit are set to 1.
1: enable Boot ROM. (Combines with bit 1 of CR1)
Descriptions
Reserved
Capabilities Pointer.
Descriptions
Max_Lat register. This value indicates “how often” the
AN983B needs to access to the PCI bus in the units of 250ns.
This value is loaded from serial EEPROM after power on or
hardware reset.
Min_Gnt register. This value indicates how long the AN983B
needs to retain the PCI bus ownership whenever it initiates a
transaction, in the units of 250ns. This value is loaded from
serial EEPROM after power on or hardware reset.
Interrupt Pin. This value indicates which of the four interrupt
request pins that AN983B is connected.
Always 01h: means the AN983B connects to INTA#
Interrupt Line. This value indicates which of the system
interrupt request lines the INTA# of AN983B is routed to. The
BIOS will fill this field when it initializes and configures the
system. The AN983B driver can use this value to determine
priority and vector information.
Descriptions
Reserved
Driver Space for special purpose. Since this area won’t be
cleared in the software reset. The AN983B driver can use this
R/W area for special purpose.
Reserved
Descriptions
Device ID, the device ID number of AN983B.
Vendor ID, the vendor ID number of ADM Technology Corp.
AN983B
www.admtek.com.tw
ADMtek Inc.
PCI/miPCI Fast Ethernet Controller with integrated PHY
0
Default Val RW Type
C0h
Default Val RW Type
From
EEPROM
From
EEPROM
01h
X
Default Val RW Type
X
Default Val RW Type
0981h
1317h
R/W
R/W
RO
RO
RO
RO
R/W
R/W
RO
RO
25