KSZ8721B Micrel Inc, KSZ8721B Datasheet - Page 18

• 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

000101
000101
Note 1.
M9999-030106
Address
Address
Address
Address
1.10:7
1.10:7
1.10:7
1.10:7
1.10:7
1.10:7
1.6
1.6
1.6
1.6
1.6
1.6
1.5
1.5
1.5
1.5
1.5
1.5
1.4
1.4
1.4
1.4
1.4
1.4
1.3
1.3
1.3
1.3
1.3
1.3
1.2
1.2
1.2
1.2
1.2
1.2
1.1
1.1
1.1
1.1
1.1
1.1
1.0
1.0
1.0
1.0
1.0
1.0
Register 2h - PHY Identifi er 1
Register 2h - PHY Identifi er 1
2.15:0
2.15:0
2.15:0
2.15:0
2.15:0
2.15:0
Register 3h - PHY Identifi er 2
3.15:10
3.15:10
3.15:10
3.15:10
3.15:10
3.15:10
3.9:4
3.9:4
3.9:4
3.9:4
3.9:4
3.9:4
3.3:0
3.3:0
3.3:0
3.3:0
3.3:0
3.3:0
Register 4h - Auto-Negotiation Advertisement
4.15
4.15
4.15
4.15
4.15
4.15
4.14
4.14
4.14
4.14
4.14
4.14
4.13
4.13
4.13
4.13
4.13
4.13
4.12 : 11
4.12 : 11
4.12 : 11
4.12 : 11
4.12 : 11
4.12 : 11
4.10
4.10
4.10
4.10
4.10
4.10
4.9
4.9
4.9
4.9
4.9
4.9
4.8
4.8
4.8
4.8
4.8
4.8
4.7
4.7
4.7
4.7
4.7
4.7
4.6
4.6
4.6
4.6
4.6
4.6
4.5
4.5
4.5
4.5
4.5
4.5
4.4:0
4.4:0
4.4:0
4.4:0
4.4:0
4.4:0
Register 5h - Auto-Negotiation Link Partner Ability
Register 5h - Auto-Negotiation Link Partner Ability
5.15
5.15
5.15
5.15
5.15
5.15
5.14
5.14
5.14
5.14
5.13
5.13
5.13
5.13
5.13
5.13
5.12
5.12
5.12
5.12
5.12
5.12
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 “Srap-
ping Options.”
Name
Name
Name
Name
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
No Preamble
No Preamble
No Preamble
No Preamble
No Preamble
No Preamble
Auto-Negotiation Complete 1 = auto-negotiation process completed
Auto-Negotiation Complete 1 = auto-negotiation process completed
Auto-Negotiation Complete 1 = auto-negotiation process completed
Auto-Negotiation Complete 1 = auto-negotiation process completed
Auto-Negotiation Complete 1 = auto-negotiation process completed
Auto-Negotiation Complete 1 = auto-negotiation process completed
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Auto-Negotiation Ability
Auto-Negotiation Ability
Auto-Negotiation Ability
Auto-Negotiation Ability
Auto-Negotiation Ability
Auto-Negotiation Ability
Link Status
Link Status
Link Status
Link Status
Link Status
Link Status
Jabber Detect
Jabber Detect
Jabber Detect
Jabber Detect
Jabber Detect
Jabber Detect
Extended Capability
Extended Capability
Extended Capability
Extended Capability
Extended Capability
Extended Capability
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
PHY ID Number
Model Number
Model Number
Model Number
Model Number
Model Number
Model Number
Revision Number
Revision Number
Revision Number
Revision Number
Revision Number
Revision Number
Next Page
Next Page
Next Page
Next Page
Next Page
Next Page
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Pause
Pause
Pause
Pause
Pause
Pause
100BaseT4
100BaseT4
100BaseT4
100BaseT4
100BaseT4
100BaseT4
100BaseTX Full Duplex
100BaseTX Full Duplex
100BaseTX Full Duplex
100BaseTX Full Duplex
100BaseTX Full Duplex
100BaseTX Full Duplex
100BaseTX
100BaseTX
100BaseTX
100BaseTX
100BaseTX
100BaseTX
10BaseT Full Duplex
10BaseT Full Duplex
10BaseT Full Duplex
10BaseT Full Duplex
10BaseT Full Duplex
10BaseT Full Duplex
10BaseT
10BaseT
10BaseT
10BaseT
10BaseT
10BaseT
Selector Field
Selector Field
Selector Field
Selector Field
Selector Field
Selector Field
Next Page
Next Page
Next Page
Next Page
Next Page
Next Page
Acknowledge
Acknowledge
Acknowledge
Acknowledge
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Remote Fault
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Description
Description
Description
Description
1 = preamble suppression; 0 = normal preamble
1 = preamble suppression; 0 = normal preamble
1 = preamble suppression; 0 = normal preamble
1 = preamble suppression; 0 = normal preamble
1 = preamble suppression; 0 = normal preamble
1 = preamble suppression; 0 = normal preamble
0 = auto-negotiation process not completed
0 = auto-negotiation process not completed
0 = auto-negotiation process not completed
0 = auto-negotiation process not completed
1 = remote fault; 0 = no remote fault
1 = remote fault; 0 = no remote fault
1 = remote fault; 0 = no remote fault
1 = remote fault; 0 = no remote fault
1 = remote fault; 0 = no remote fault
1 = remote fault; 0 = no remote fault
1 = capable to perform auto-negotiation
1 = capable to perform auto-negotiation
1 = capable to perform auto-negotiation
1 = capable to perform auto-negotiation
1 = capable to perform auto-negotiation
1 = capable to perform auto-negotiation
0 = unable to perform auto-negotiation
0 = unable to perform auto-negotiation
0 = unable to perform auto-negotiation
0 = unable to perform auto-negotiation
1 = link is up; 0 = link is down
1 = link is up; 0 = link is down
1 = link is up; 0 = link is down
1 = link is up; 0 = link is down
1 = link is up; 0 = link is down
1 = link is up; 0 = link is down
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = jabber detected; 0 = jabber not detected. Default is Low RO/LH
1 = supports extended capabilities registers
1 = supports extended capabilities registers
1 = supports extended capabilities registers
1 = supports extended capabilities registers
1 = supports extended capabilities registers
1 = supports extended capabilities registers
Assigned to the 3rd through 18th bits of the Organizationally RO
Assigned to the 3rd through 18th bits of the Organizationally RO
Assigned to the 3rd through 18th bits of the Organizationally RO
Assigned to the 3rd through 18th bits of the Organizationally RO
Assigned to the 3rd through 18th bits of the Organizationally RO
Assigned to the 3rd through 18th bits of the Organizationally RO
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Assigned to the 19th through 24th bits of the Organizationally
Assigned to the 19th through 24th bits of the Organizationally
Assigned to the 19th through 24th bits of the Organizationally
Assigned to the 19th through 24th bits of the Organizationally
Assigned to the 19th through 24th bits of the Organizationally
Assigned to the 19th through 24th bits of the Organizationally
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Unique Identifi er (OUI). Micrel’s OUI is 0010A1 (hex)
Six bit manufacturer’s model number
Six bit manufacturer’s model number
Six bit manufacturer’s model number
Six bit manufacturer’s model number
Six bit manufacturer’s model number
Six bit manufacturer’s model number
Four bit manufacturer’s model number
Four bit manufacturer’s model number
Four bit manufacturer’s model number
Four bit manufacturer’s model number
Four bit manufacturer’s model number
Four bit manufacturer’s model number
1 = next page capable; 0 = no next page capability.
1 = next page capable; 0 = no next page capability.
1 = next page capable; 0 = no next page capability.
1 = next page capable; 0 = no next page capability.
1 = next page capable; 0 = no next page capability.
1 = next page capable; 0 = no next page capability.
1 = remote fault supported; 0 = no remote fault
1 = remote fault supported; 0 = no remote fault
1 = remote fault supported; 0 = no remote fault
1 = remote fault supported; 0 = no remote fault
1 = remote fault supported; 0 = no remote fault
1 = remote fault supported; 0 = no remote fault
1 = pause function supported; 0 = no pause function
1 = pause function supported; 0 = no pause function
1 = pause function supported; 0 = no pause function
1 = pause function supported; 0 = no pause function
1 = pause function supported; 0 = no pause function
1 = pause function supported; 0 = no pause function
1 = T4 capable; 0 = no T4 capability
1 = T4 capable; 0 = no T4 capability
1 = T4 capable; 0 = no T4 capability
1 = T4 capable; 0 = no T4 capability
1 = T4 capable; 0 = no T4 capability
1 = T4 capable; 0 = no T4 capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX with full duplex; 0 = no TX full duplex capability
1 = TX capable; 0 = no TX capability
1 = TX capable; 0 = no TX capability
1 = TX capable; 0 = no TX capability
1 = TX capable; 0 = no TX capability
1 = TX capable; 0 = no TX capability
1 = TX capable; 0 = no TX capability
1 = 10Mbps with full duplex
1 = 10Mbps with full duplex
1 = 10Mbps with full duplex
1 = 10Mbps with full duplex
1 = 10Mbps with full duplex
1 = 10Mbps with full duplex
0 = no 10Mbps full duplex capability
0 = no 10Mbps full duplex capability
0 = no 10Mbps full duplex capability
0 = no 10Mbps full duplex capability
0 = no 10Mbps full duplex capability
0 = no 10Mbps full duplex capability
1 = 10Mbps capable; 0 = no 10Mbps capability
1 = 10Mbps capable; 0 = no 10Mbps capability
1 = 10Mbps capable; 0 = no 10Mbps capability
1 = 10Mbps capable; 0 = no 10Mbps capability
1 = 10Mbps capable; 0 = no 10Mbps capability
1 = 10Mbps capable; 0 = no 10Mbps capability
[00001] = IEEE 802.3
[00001] = IEEE 802.3
[00001] = IEEE 802.3
[00001] = IEEE 802.3
[00001] = IEEE 802.3
[00001] = IEEE 802.3
1 = next page capable; 0 = no next page capability
1 = next page capable; 0 = no next page capability
1 = next page capable; 0 = no next page capability
1 = next page capable; 0 = no next page capability
1 = next page capable; 0 = no next page capability
1 = next page capable; 0 = no next page capability
1 = link code word received from partner
1 = link code word received from partner
1 = link code word received from partner
1 = link code word received from partner
0 = link code word not yet received
0 = link code word not yet received
0 = link code word not yet received
0 = link code word not yet received
0 = link code word not yet received
0 = link code word not yet received
1 = remote fault detected; 0 = no remote fault
1 = remote fault detected; 0 = no remote fault
1 = remote fault detected; 0 = no remote fault
1 = remote fault detected; 0 = no remote fault
1 = remote fault detected; 0 = no remote fault
1 = remote fault detected; 0 = no remote fault
18
Mode
Mode
Mode
Mode
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
RO
RO
RO
RO
RO
RO
RO/LL
RO/LL
RO/LL
RO/LL
RO/LL
RO/LL
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
(Note 1)
Default
Default
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0022h
0022h
0022h
0022h
0022h
0022h
RO
RO
RO
RO
RO
RO
100001
100001
100001
100001
100001
100001
1001
1001
1001
1001
1001
1001
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Set by
Set by
Set by
Set by
Set by
Set by
SPD100 &
SPD100 &
SPD100 &
SPD100 &
SPD100 &
SPD100 &
DUPLEX
DUPLEX
DUPLEX
DUPLEX
DUPLEX
DUPLEX
Set by
Set by
Set by
Set by
Set by
Set by
SPD100
SPD100
SPD100
SPD100
SPD100
SPD100
Set by
Set by
Set by
Set by
Set by
Set by
DUPLEX
DUPLEX
DUPLEX
DUPLEX
DUPLEX
DUPLEX
1
1
1
1
1
1
00001
00001
00001
00001
00001
00001
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
March 2006