KSZ9021GN TR Micrel Inc, KSZ9021GN TR Datasheet - Page 38

• Manufacturer Part Number: KSZ9021GN TR
• Description: Specifications: Number of Drivers/Receivers: 8/8 ; Type: Transceiver ; Voltage - Supply: 3.135 V ~ 3.465 V ; Package / Case: 64-VFQFN Exposed Pad ; Packaging: Tape & Reel (TR) ; Protocol: Gigabit Ethernet ; Lead Free Status: Lead Free ; RoHS Stat
• Manufacturer: Micrel Inc

Micrel, Inc.
September 2010
Address
27.5
27.4
27.3
27.2
27.1
27.0
Register 28 (1Ch) – Digital Debug Control 1
28.15:8
28.7
28.6
28.5:1
28.0
Register 31 (1Fh) – PHY Control
31.15
31.14
31.13:12
31.11:10
31.9
31.8:7
31.6
31.5
31.4
Name
Page Receive
Interrupt
Parallel Detect
Fault Interrupt
Link Partner
Acknowledge
Interrupt
Link Down
Interrupt
Remote Fault
Interrupt
Link Up
Interrupt
Reserved
mdi_set
swapoff
Reserved
PCS Loopback
Reserved
Interrupt Level
Reserved
Reserved
Enable Jabber
Reserved
Speed status
1000Base-T
Speed status
100Base-TX
Speed status
10Base-T
Description
1 = Page Receive occurred
0 = Page Receive did not occurred
1 = Parallel Detect Fault occurred
0 = Parallel Detect Fault did not occurred
1 = Link Partner Acknowledge occurred
0 = Link Partner Acknowledge did not occurred
1 = Link Down occurred
0 = Link Down did not occurred
1 = Remote Fault occurred
0 = Remote Fault did not occurred
1 = Link Up occurred
0 = Link Up did not occurred
mdi_set has no function when swapoff (reg28.6)
is de-asserted.
1 = When swapoff is asserted, if mdi_set is
0 = When swapoff is asserted, if mdi_set is de-
1 = Disable auto crossover function
0 = Enable auto crossover function
1 = Enable 10Base-T and 100Base-TX
0 = normal function
1 = Interrupt pin active high
0 = Interrupt pin active low
1 = Enable jabber counter
0 = Disable jabber counter
1 = Indicate chip final speed status at
1 = Indicate chip final speed status at
1 = Indicate chip final speed status at
asserted, chip will operate at MDI mode.
asserted, chip will operate at MDI-X mode.
Loopback for register 0h bit 14.
1000Base-T
100Base-TX
10Base-T
38
Mode
RO/RC
RO/RC
RO/RC
RO/RC
RO/RC
RO/RC
RW
RW
RW
RW
RW
RW
RW
RW
RO/LH/RC
RW
RW
RO
RO
RO
(1)
Default
0
0
0
0
0
0
0000_0000
0
0
00_000
0
0
0
00
00
1
00
0
0
0
M9999-091010-1.1
KSZ9021GN