LAN9218I-MT-E2 SMSC [SMSC Corporation], LAN9218I-MT-E2 Datasheet - Page 77
LAN9218I-MT-E2
Manufacturer Part Number
LAN9218I-MT-E2
Description
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support
Manufacturer
SMSC [SMSC Corporation]
Datasheet
1.LAN9218I-MT-E2.pdf
(130 pages)
- Current page: 77 of 130
- Download datasheet (2Mb)
High-Performance Single-Chip 10/100 Ethernet Controller with HP Auto-MDIX & Industrial Temperature Support
Datasheet
SMSC LAN9218I
13-12
BITS
11-3
2
1
0
Threshold Control Bits (TR). These control the transmit threshold values
the MIL should use. These bits are used when the SF bit is reset. The host
can program the Transmit threshold by setting these bits. The intent is to
allow the MIL to transfer data to the final destination only after the threshold
value is met.
In 10Mbps mode (TTM = 1) the threshold is set as follows:
In 100Mbps mode (TTM = 0) the threshold is set by as follows:
Reserved
32/16-bit Mode. When set, the LAN9218I is set for 32-bit operation. When
clear, it is configured for 16-bit operation. This field is the value of the
D32/nD16 strap.
Soft Reset Time-out (SRST_TO). If a software reset is attempted when the
internal PHY is not in the operational state (RX_CLK and TX_CLK running),
the reset will not complete and the soft reset operation will time-out and this
bit will be set to a ‘1’. The host processor must correct the problem and
issue another soft reset.
Soft Reset (SRST). Writing 1 generates a software initiated reset. This reset
generates a full reset of the MAC CSR’s. The SCSR’s (system command
and status registers) are reset except for any NASR bits. Soft reset also
clears any TX or RX errors (TXE/RXE). This bit is self-clearing.
Notes:
Do not attempt a soft reset unless the internal PHY is fully awake and
operational. After a PHY reset, or when returning from a reduced power
state, the PHY must be given adequate time to return to the operational
state before a soft reset can be issued. The internal RX_CLK and TX_CLK
signals must be running for a proper software reset. Please refer to
Section 6.8, "Reset Timing," on page 123
The LAN9218I must always be read at least once after power-up, reset,
or upon return from a power-saving state or write operations will not
function.
[13]
[13]
0
0
1
1
0
0
1
1
[12]
[12]
0
1
0
1
0
1
0
1
DESCRIPTION
DATASHEET
Threshold (DWORDS)
Threshold (DWORDS)
for details on PHY reset timing.
77
020h
040h
080h
100h
012h
018h
020h
028h
TYPE
R/W
RO
RO
RO
SC
Revision 1.5 (07-18-06)
DEFAULT
00
0
0
-
-
Related parts for LAN9218I-MT-E2
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
FAST ETHERNET PHYSICAL LAYER DEVICE
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
357-036-542-201 CARDEDGE 36POS DL .156 BLK LOPRO
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
4-PORT USB2.0 HUB CONTROLLER
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
FDC37C672ENHANCED SUPER I/O CONTROLLER WITH FAST IR
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
COM90C66LJPARCNET Controller/Transceiver with AT Interface and On-Chip RAM
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
SMSC Corporation
Datasheet: