lan9311 Standard Microsystems Corp., lan9311 Datasheet - Page 262

• Manufacturer Part Number: lan9311
• Description: Lan9311/lan9311i Two Port 10/100 Managed Ethernet Switch With 16-bit Non-pci Cpu Interface
• Manufacturer: Standard Microsystems Corp.

Revision 1.2 (04-08-08)
14.2.9.3
31:28
24:22
BITS
27
26
25
RESERVED
Device Ready (READY)
When set, this bit indicates that the LAN9311/LAN9311i is ready to be
accessed. Upon power-up, nRST reset, soft reset, or digital reset, the host
processor may interrogate this field as an indication that the
LAN9311/LAN9311i has stabilized and is fully active.
This bit can cause an interrupt if enabled.
Note:
Note:
AMDIX_EN Strap State Port 2
This bit reflects the state of the auto_mdix_strap_2 strap that connects to
the PHY. The strap value is loaded with the level of the auto_mdix_strap_2
during reset and can be re-written by the EEPROM Loader. The strap value
can be overridden by bit 15 and 13 of the Port 2 PHY Special Control/Status
Indication Register
AMDIX_EN Strap State Port 1
This bit reflects the state of the auto_mdix_strap_1 strap that connects to
the PHY. The strap value is loaded with the level of the auto_mdix_strap_1
during reset and can be re-written by the EEPROM Loader. The strap value
can be overridden by bit 15 and 13 of the Port 1 PHY Special Control/Status
Indication Register
RESERVED
Hardware Configuration Register (HW_CFG)
This register allows the configuration of various hardware features including TX/RX FIFO sizes, Host
MAC transmit threshold properties, and software reset. A detailed explanation of the allowable settings
for FIFO memory allocation can be found in
on page
Note: This register can be polled while the LAN9311/LAN9311i is in the reset or not ready state
Note: Either half of this register can be read without the need to read the other half.
With the exception of the HW_CFG, PMT_CTRL, BYTE_TEST, and
RESET_CTL registers, read access to any internal resources is
forbidden while the READY bit is cleared. Writes to any address
are invalid until this bit is set.
This bit is identical to bit 0 of the
Register
(READY bit is cleared).
Offset:
122.
(PMT_CTRL).
(Section
(Section
14.4.2.10).
14.4.2.10).
074h
DESCRIPTION
DATASHEET
Power Management Control
262
Two Port 10/100 Managed Ethernet Switch with 16-Bit Non-PCI CPU Interface
Section 9.7.3, "FIFO Memory Allocation Configuration,"
Size:
32 bits
TYPE
RO
RO
RO
RO
RO
SMSC LAN9311/LAN9311i
Note 14.47
Note 14.48
DEFAULT
Datasheet
0b
-
-