ADM7001XACT1XP Lantiq, ADM7001XACT1XP Datasheet - Page 33

• Manufacturer Part Number: ADM7001XACT1XP
• Manufacturer: Lantiq

Specifications of ADM7001XACT1XP

• Lead Free Status / RoHS Status: Supplier Unconfirmed

•
The basic mode control register at address 0
negotiation function. When auto negotiation is disabled, the speed selection bit (bit 13) controls switching between
10 Mbps or 100 Mbps operation, while the duplex mode bit (bit 8) controls switching between full duplex operation
and half duplex operation. The speed selection and duplex mode bits have no effect on the mode of operation
when the auto negotiation enable bit (bit 12) is set.
The basic mode status register (BMSR) at address 1
(bit 15 to bit 11), auto negotiation ability (bit 3), and extended register capability (bit 0). These bits are hardwired
to indicate the full functionality of the ADM7001. The BMSR also provides status on:
•
•
•
The auto negotiation advertisement register at address 4
by the ADM7001. All available abilities are transmitted by default, but writing to this register or configuring external
pins can suppress any ability.
The auto negotiation link partner ability register at address 05
indicated by auto negotiation communication. The contents of this register are considered valid when the auto
negotiation complete bits (bit 5, register address 1
3.1.18
The twelve sets of four pins listed in
logic state of these pins is latched into the advertisement register (register address 4
purpose. These pins are also used for evaluating the default value in the base mode control register (register 0
according to
3.2
The ADM7001 interfaces to 10/100 Media Access Controllers (MAC) via the RMII, MII, or GPSI Interface.
3.2.1
The reduced media Independent interface (RMII) is compliant to the RMII consortium’s RMII Rev. 1.2
specification. The REFCLK pin that supplies the 50 MHz reference clock to the ADM7001 is used as the RMII
REFCLK signal. All RMII signals with the exception of the assertion of CRSDV_P are synchronous to REFCLK.
See
Data Sheet
10Base-T half duplex (lowest priority)
Whether auto negotiation is complete (bit 5)
Whether the Link Partner is advertising that a remote fault has occurred (bit 4)
Whether a valid link has been established (bit 2)
Figure 5
Auto Negotiation and Speed Configuration
MAC Interface
Reduced Media Independent Interface (RMII)
Table 13
Channel Configuration.
Table 13
H
configure the speed capability of each channel of ADM7001. The
provides control of enabling, disabling, and restarting of the auto
H
and bit 4, register 17
H
indicates the set of available abilities for technology types
33
H
indicates the auto negotiation abilities to be advertised
H
indicates the abilities of the Link Partner as
H
) are set.
H
Function Description
Rev. 1.07, 2005-09-12
) for auto negotiation
Data sheet
ADM7001
H
)