KSZ8721B Micrel Inc, KSZ8721B Datasheet - Page 21

• 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

Note 1.
March 2006
Address
Address
Address
Address
1f.6
1f.6
1f.6
1f.6
1f.6
1f.6
1f.5
1f.5
1f.5
1f.5
1f.5
1f.4:2
1f.4:2
1f.4:2
1f.4:2
1f.4:2
1f.4:2
1f.1
1f.1
1f.1
1f.1
1f.1
1f.1
1f.0
1f.0
1f.0
1f.0
1f.0
1f.0
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 “Strap-
ping Options.”
Name
Name
Name
Name
Enable Pause
Enable Pause
Enable Pause
Enable Pause
Enable Pause
Enable Pause
(Flow-Control Result)
(Flow-Control Result)
(Flow-Control Result)
PHY Isolate
PHY Isolate
PHY Isolate
PHY Isolate
PHY Isolate
Operation Mode Indication [000] = still in auto-negotiation
Operation Mode Indication [000] = still in auto-negotiation
Operation Mode Indication [000] = still in auto-negotiation
Operation Mode Indication [000] = still in auto-negotiation
Operation Mode Indication [000] = still in auto-negotiation
Operation Mode Indication [000] = still in auto-negotiation
Enable SQE Test
Enable SQE Test
Enable SQE Test
Enable SQE Test
Enable SQE Test
Enable SQE Test
Disable Data Scrambling
Disable Data Scrambling
Disable Data Scrambling
Disable Data Scrambling
Disable Data Scrambling
Disable Data Scrambling
Description
Description
Description
Description
1 = fl ow control capable; 0 = no fl ow control
1 = fl ow control capable; 0 = no fl ow control
1 = fl ow control capable; 0 = no fl ow control
1 = fl ow control capable; 0 = no fl ow control
1 = fl ow control capable; 0 = no fl ow control
1 = fl ow control capable; 0 = no fl ow control
1 = PHY in isolate mode; 0 = not isolated
1 = PHY in isolate mode; 0 = not isolated
1 = PHY in isolate mode; 0 = not isolated
1 = PHY in isolate mode; 0 = not isolated
1 = PHY in isolate mode; 0 = not isolated
[001] = 10BaseT half duplex
[001] = 10BaseT half duplex
[001] = 10BaseT half duplex
[001] = 10BaseT half duplex
[010] = 100BaseTX half duplex
[010] = 100BaseTX half duplex
[010] = 100BaseTX half duplex
[010] = 100BaseTX half duplex
[011] = reserved
[011] = reserved
[011] = reserved
[011] = reserved
[101] = 10BaseT full duplex
[101] = 10BaseT full duplex
[101] = 10BaseT full duplex
[101] = 10BaseT full duplex
[110] = 100BaseTX full duplex
[110] = 100BaseTX full duplex
[110] = 100BaseTX full duplex
[110] = 100BaseTX full duplex
[111] = PHY/MII isolate
[111] = PHY/MII isolate
[111] = PHY/MII isolate
[111] = PHY/MII isolate
1 = enable SQE test; 0 = disable
1 = enable SQE test; 0 = disable
1 = enable SQE test; 0 = disable
1 = enable SQE test; 0 = disable
1 = enable SQE test; 0 = disable
1 = enable SQE test; 0 = disable
1 = disable scrambler; 0 = enable
1 = disable scrambler; 0 = enable
1 = disable scrambler; 0 = enable
1 = disable scrambler; 0 = enable
1 = disable scrambler; 0 = enable
1 = disable scrambler; 0 = enable
21
Mode
Mode
Mode
Mode
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
(Note 1)
Default
Default
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
M9999-030106