rtl8100l Realtek Semiconductor Corporation, rtl8100l Datasheet - Page 10

• Manufacturer Part Number: rtl8100l
• Description: Fast Ethernet Controller
• Manufacturer: Realtek Semiconductor Corporation

5. Register Descriptions
The RTL8100B(L) provides the following set of operational registers mapped into PCI memory space or I/O space.
2001-11-9
003Ah-003Bh
003Ch-003Dh
001Ch-001Fh
002Ch-002Fh
004Ch-004Fh
0018h-001Bh
0028h-002Bh
003Eh-003Fh
0048h-004Bh
0006h-0007h
0010h-0013h
0014h-0017h
0020h-0023h
0024h-0027h
0030h-0033h
0034h-0035h
0038h-0039h
0040h-0043h
0044h-0047h
000Ah
000Dh
Offset
000Bh
000Ch
000Eh
0000h
0001h
0002h
0003h
0004h
0005h
0008h
0009h
000Fh
0036h
0037h
0050h
0051h
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
-
RBSTART
CONFIG0
ERBCR
9346CR
TSAD0
TSAD1
TSAD2
TSAD3
MAR0
MAR1
MAR2
MAR3
MAR4
MAR5
MAR6
MAR7
CAPR
ERSR
TCTR
TSD0
TSD1
TSD2
TSD3
IDR0
IDR1
IDR2
IDR3
IDR4
IDR5
MPC
Tag
CBR
RCR
IMR
TCR
ISR
CR
-
ID Register 0: ID registers 0-5 are only permitted to read/write by
4-byte access. Read access can be byte, word, or double word access.
The initial value is autoloaded from the EEPROM EthernetID field.
ID Register 1
ID Register 2
ID Register 3
ID Register 4
ID Register 5
Reserved
Multicast Register 0: The MAR register 0-7 are only permitted to
read/write by 4-byte access. Read access can be byte, word, or double
word access. Driver is responsible for initializing these registers.
Multicast Register 1
Multicast Register 2
Multicast Register 3
Multicast Register 4
Multicast Register 5
Multicast Register 6
Multicast Register 7
Transmit Status of Descriptor 0
Transmit Status of Descriptor 1
Transmit Status of Descriptor 2
Transmit Status of Descriptor 3
Transmit Start Address of Descriptor0
Transmit Start Address of Descriptor1
Transmit Start Address of Descriptor2
Transmit Start Address of Descriptor3
Receive (Rx) Buffer Start Address
Early Receive (Rx) Byte Count Register
Early Rx Status Register
Command Register
Current Address of Packet Read
Current Buffer Address: The initial value is 0000h. It reflects total
received byte-count in the Rx buffer.
Interrupt Mask Register
Interrupt Status Register
Transmit (Tx) Configuration Register
Receive (Rx) Configuration Register
Timer
general-purpose timer. Writing any value to this 32-bit register will
reset the original timer and begin to count from zero.
Missed Packet Counter: Indicates the number of packets discarded
due to Rx FIFO overflow. It is a 24-bit counter. After s/w reset, MPC
is cleared. Only the lower 3 bytes are valid.
When any value is written, MPC will be reset also.
93C46 Command Register
Configuration Register 0
10
CounT
Register:
Description
This register contains a 32-bit
RTL8100B(L)
Rev.1.41