KSZ9021GQ Datasheet, PDF (39/59 Pages) Micrel Semiconductor – Gigabit Ethernet Transceiver with GMII / MII Support

Micrel, Inc.
KSZ9021GQ
Address
Name
Description
Mode⁽¹⁾
Register 8 (8h) – Auto-Negotiation Link Partner Next Page Ability
8.15
Next Page
1 = Additional Next Page(s) will follow
RO
0 = Last page
8.14
Acknowledge 1 = Successful receipt of link word
RO
0 = No successful receipt of link word
8.13
Message Page 1 = Message page
RO
0 = Unformatted page
8.12
Acknowledge2 1 = Able to act on the information
RO
0 = Not able to act on the information
8.11
Toggle
1 = Previous value of transmitted link code
RO
word equal to logic zero
0 = Previous value of transmitted link code
word equal to logic one
8.10:0
Message Field
RO
Register 9 (9h) – 1000Base-T Control
9:15:13
Test Mode Bits Transmitter test mode operations
RW
[9.15:13] Mode
[000]
Normal Operation
[001]
Test mode 1 –Transmit waveform
test
[010]
Test mode 2 –Transmit jitter test
in Master mode
[011]
Test mode 3 –Transmit jitter test
in Slave mode
[100]
Test mode 4 –Transmitter
distortion test
[101]
Reserved, operations not
identified
[110]
Reserved, operations not
identified
[111]
Reserved, operations not
identified
9.12
MASTER-
1 = Enable MASTER-SLAVE Manual
RW
SLAVE
configuration value
Manual
Configuration
Enable
0 = Disable MASTER-SLAVE Manual
configuration value
9.11
MASTER-
1 = Configure PHY as MASTER during
RW
SLAVE
MASTER-SLAVE negotiation
Manual
Configuration
Value
0 = Configure PHY as SLAVE during MASTER-
SLAVE negotiation
This bit is ignored if MASTER-SLAVE Manual
Configuration is disabled (register 9.12 = 0)
Default
0
0
0
0
0
000_0000_0000
000
0
0
September 2010
39
M9999-091010-1.2