LAN91C110-PU SMSC, LAN91C110-PU Datasheet - Page 18

• Manufacturer Part Number: LAN91C110-PU
• Description: Ethernet ICs Non-PCI 10/100 Ethernet MAC
• Manufacturer: SMSC
• Type: Single Chip MAC and PHY Controllerr

Specifications of LAN91C110-PU

• Ethernet Connection Type: 10 Base-T, 100 Base-TX
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Product: Ethernet Controllers
• Number Of Transceivers: 1
• Standard Supported: 802.3
• Data Rate: 10 MB, 100 MB
• Supply Voltage (max): 5 V
• Supply Voltage (min): 0 V
• Supply Current (max): 40 mA
• Maximum Operating Temperature: + 70 C
• Package / Case: TQFP-144
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Regardless of the functional description, all registers can be accessed as doublewords, words or bytes.
The default bit values upon hard reset are highlighted below each register.
A special BANK (BANK7) exists to support the addition of external registers.
BANK SELECT REGISTER
BS2, BS1, BS0 Determine the bank presently in use. This register is always accessible and is used to select the
register bank in use.
The upper byte always reads as 33h and can be used to help determine the I/O location of the LAN91C110.
The BANK SELECT REGISTER is always accessible regardless of the value of BS0-2.
Note: The bank select register can be accessed as a word at offset 0x0Eh, or as a byte at offset 0x0Fh.
BANK 7 has no internal registers other than the BANK SELECT REGISTER itself. On valid cycles where BANK7 is
selected (BS0=BS1=BS2=1), and A3=0, nCSOUT is activated to facilitate implementation of external registers.
Note: BANK7 does not exist in LAN91C9x devices. For backward S/W compatibility BANK7 accesses should be
done if the Revision Control register indicates the device is the LAN91C110.
SMSC LAN91C110 Rev. B
HIGH
BYTE
BYTE
LOW
OFFSET
E
C
A
E
0
2
4
6
8
RESERVED (0)
BANK SELECT
EPH STATUS
COUNTER
X
0
0
BANK0
MCR
RCR
TCR
MIR
BANK SELECT
REGISTER
X
0
0
NAME
Table 5.1 - Internal I/O Space Mapping
BANK SELECT
CONTROL
BANK1
CONFIG
X
1
1
BASE
IA0-1
IA2-3
IA4-5
DATASHEET
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Page 18
FEAST Fast Ethernet Controller for PCMCIA and Generic 16-Bit Applications
X
1
1
READ/WRITE
MMU COMMAND
TYPE
BANK SELECT
FIFO PORTS
INTERRUPT
BANK2
POINTER
X
0
0
DATA
DATA
PNR
BS2
0
0
0
BANK SELECT
REVISION
BANK3
MGMT
MT0-1
MT2-3
MT4-5
MT6-7
BS1
RCV
SYMBOL
1
1
0
BSR
Revision 1.0 (11-04-08)
BS0
1
1
0
Datasheet