KSZ8721B Micrel Inc, KSZ8721B Datasheet - Page 20

• Manufacturer Part Number: KSZ8721B
• Description: IC TXRX PHY 10/100 2.5V 48-SSOP
• Manufacturer: Micrel Inc
• Type: Transceiverr

Specifications of KSZ8721B

• Number Of Drivers/receivers: 1/1
• Protocol: MII, RMII
• Voltage - Supply: 2.375 V ~ 2.625 V
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Data Rate: 100Mbps
• Supply Voltage Range: 2.375V To 2.625V
• Logic Case Style: SSOP
• No. Of Pins: 48
• Operating Temperature Range: 0°C To +70°C
• Msl: MSL 2 - 1 Year
• Ic Function: Transceiver IC
• Termination Type: SMD
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 576-1627 - BOARD EVALUATION FOR KSZ8721BMC576-1626 - BOARD EVALUATION FOR KSZ8721BL
• Lead Free Status / RoHS Status: Compliant, Lead free / RoHS Compliant
• Other names: 576-1026-5; 576-1510-5; 576-1510-5; KSZ8721B

KS8721B/BT
Note 1.
M9999-041405
Address
Register 15h - RXER Counter
15.15:0
Register 1bh - Interrupt Control/Status Register
1b.15
1b.14
1b.13
1b.12
1b.11
1b.10
1b.9
1b.8
1b.7
1b.6
1b.5
1b.4
1b.3
1b.2
1b.1
1b.0
Register 1fh - 100BaseTX PHY Controller
1f.15:14
1f:13
1f.12
1f.11
1f.10
1f.9
1f.8
1f.7
RW: Read/Write, RO: Read only, SC: Self clear, LH: Latch High, LL: Latch Low. Some of the default values are set by strap-in. See
“Srapping Options.”
Name
RXER Counter
Jabber Interrupt Enable
Receive Error
Interrupt Enable
Page Received
Interrupt Enable
Parallel Detect Fault
Interrupt Enable
Link Partner Acknowledge
Interrupt Enable
Link Down
Interrupt Enable
Remote Fault
Interrupt Enable
Link Up Interrupt Enable
Jabber Interrupt
Receive Error Interrupt
Page Receive Interrupt
Parallel Detect
Fault Interrupt
Link Partner
Acknowledge Interrupt
Link Down Interrupt
Remote Fault Interrupt
Link Up Interrupt
Reserved
Pairswap Disable
Energy Detect
Force Link
Power Saving
Interrupt Level
Enable Jabber
Auto-Negotiation Complete
Description
RX Error counter for the RX_ER in each package
1 = Enable Jabber Interrupt; 0=Disable Jabber Interrupt
1 = Enable Receive Error Interrupt
0 = Disable Receive Error Interrupt
1 = Enable Page Received Interrupt
0 = Disable Page Received Interrupt
1 = Enable Parallel Detect Fault Interrupt
0 = Disable Parallel Detect Fault Interrupt
1 = Enable Link Partner Acknowledge Interrupt
0 = Disable Link Partner Acknowledge Interrupt
1 = Enable Link Down Interrupt
0 = Disable Link Down Interrupt
1 = Enable Remote Fault Interrupt
0 = Disable Remote Fault Interrupt
1 = Enable Link Up Interrupt
0 = Disable Link Up Interrupt
1 = Jabber Interrupt Occurred
0 = Jabber Interrupt Does Not Occurred
1 = Receive Error Occurred
0 = Receive Error Does Not Occurred
1 = Page Receive Occurred
0 = Page Receive Does Not Occurred
1 = Parallel Detect Fault Occurred
0 = Parallel Detect Fault Does Not Occurred
1 = Link Partner Acknowledge Occurred
0 = Link Partner Acknowledge Does Not Occurred
1 = Link Down Occurred
0 = Link Down Does Not Occurred
1 = Remote Fault Occurred
0 = Remote Fault Does Not Occurred
1 = Link Up Interrupt Occurred
0 = Link Up Interrupt Does Not Occurred
1 = Disable MDI/MDIX; 0 = Enable MDI/MDIX
1 = Presence of Signal on RX+/- Analog Wire Pair
0 = No Signal Setected on RX+/-
1 = Force Link Pass; 0 = Normal Link Operation
This bit bypasses the control logic and allow transmitter
to send pattern even if there is no link.
1 = Enable Ppower Saving; 0 = Disable
1 = Interrupt Pin Active High; 0 = Active Low
1 = Enable Jabber Counter; 0 = Disable
1 = Auto-Negotiation Complete; 0 = Not Nomplete
20
Mode
RO
RW
RW
RW
RW
RW
RW
RW
RW
RO/SC
RO/SC
RO/SC
RO/SC
RO/SC
RO/SC
RO/SC
RO/SC
R/W
RO
R/W
RW
RW
RW
RW
(Note 1)
Default
0000
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
Micrel, Inc.
April 2005