KS8721B Micrel Inc, KS8721B Datasheet - Page 19
![Special Function IC](/photos/6/84/68448/576-48-ssop_sml.jpg)
KS8721B
Manufacturer Part Number
KS8721B
Description
Special Function IC
Manufacturer
Micrel Inc
Type
Transceiverr
Specifications of KS8721B
Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
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
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
576-1006 - BOARD EVAL EXPERIMENT KS8721B
Lead Free Status / RoHS Status
Not Compliant, Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
KS8721B
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
KS8721BL
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Company:
Part Number:
KS8721BT
Manufacturer:
LUCENT
Quantity:
560
Part Number:
KS8721BT
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Part Number:
KS8721BTR
Manufacturer:
MICREL/麦瑞
Quantity:
20 000
Note 1.
March 2006
Address
Address
Address
Address
5.11:10
5.11:10
5.11:10
5.11:10
5.11:10
5.11:10
5.9
5.9
5.9
5.9
5.9
5.8
5.8
5.8
5.8
5.8
5.8
5.7
5.7
5.7
5.7
5.7
5.7
5.6
5.6
5.6
5.6
5.6
5.6
5.5
5.5
5.5
5.5
5.5
5.5
5.4:0
5.4:0
5.4:0
5.4:0
5.4:0
5.4:0
Register 6h - Auto-Negotiation Expansion
6.15:5
6.15:5
6.15:5
6.15:5
6.15:5
6.15:5
6.4
6.4
6.4
6.4
6.4
6.4
6.3
6.3
6.2
6.2
6.2
6.2
6.2
6.2
6.1
6.1
6.1
6.1
6.1
6.1
6.0
6.0
6.0
6.0
6.0
6.0
Register 7h - Auto-Negotiation Next Page
7.15
7.15
7.15
7.15
7.15
7.15
7.14
7.14
7.14
7.14
7.14
7.14
7.13
7.13
7.13
7.13
7.13
7.13
7.12
7.12
7.12
7.12
7.12
7.12
7.11
7.11
7.11
7.11
7.11
7.11
7.10:0
7.10:0
7.10:0
7.10:0
7.10:0
7.10:0
Register 8h - Link Partner Next Page Ability
Register 8h - Link Partner Next Page Ability
8.15
8.15
8.15
8.15
8.15
8.15
8.14
8.14
8.14
8.14
8.14
8.14
8.13
8.13
8.13
8.13
8.13
8.13
8.12
8.12
8.12
8.12
8.12
8.12
8.11
8.11
8.11
8.11
8.11
8.11
8.10:0
8.10:0
8.10:0
8.10:0
8.10:0
8.10:0
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 “Srap-
ping Options.”
Name
Name
Name
Name
Pause
Pause
Pause
Pause
Pause
Pause
100 BaseT4
100 BaseT4
100 BaseT4
100 BaseT4
100 BaseT4
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
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Parallel Detection Fault
Parallel Detection Fault
Parallel Detection Fault
Parallel Detection Fault
Parallel Detection Fault
Parallel Detection Fault
Link Partner Next
Page Able
Page Able
Page Able
Page Able
Next Page Able
Next Page Able
Next Page Able
Next Page Able
Next Page Able
Next Page Able
Page Received
Page Received
Page Received
Page Received
Page Received
Page Received
Link Partner
Link Partner
Link Partner
Link Partner
Link Partner
Link Partner
Auto-Negotiation Able
Auto-Negotiation Able
Auto-Negotiation Able
Auto-Negotiation Able
Next Page
Next Page
Next Page
Next Page
Next Page
Next Page
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Message Page
Message Page
Message Page
Message Page
Message Page
Message Page
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Message Field
Message Field
Message Field
Message Field
Message Field
Message Field
Next Page
Next Page
Next Page
Next Page
Next Page
Next Page
Acknowledge
Acknowledge
Acknowledge
Acknowledge
Acknowledge
Acknowledge
Message Page
Message Page
Message Page
Message Page
Message Page
Message Page
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Acknowledge2
Toggle
Toggle
Toggle
Toggle
Toggle
Toggle
Message Field
Message Field
Message Field
Message Field
Message Field
Message Field
Description
Description
Description
Description
5.10 5 .11
5.10 5 .11
5.10 5 .11
5.10 5 .11
5.10 5 .11
5.10 5 .11
0 0
0 0
0 0
0 0
No PAUSE
0 1
0 1
0 1
0 1
Asymmetric PAUSE (link partner)
Asymmetric PAUSE (link partner)
1 0
1 0
1 0
1 0
Symmetric PAUSE
Symmetric PAUSE
1 1
1 1
1 1
1 1
Symmetric & Asymmetric PAUSE (local device)
Symmetric & Asymmetric PAUSE (local device)
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
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 = fault detected by parallel detection
1 = fault detected by parallel detection
1 = fault detected by parallel detection
1 = fault detected by parallel detection
1 = fault detected by parallel detection
1 = fault detected by parallel detection
0 = no fault detected by parallel detection.
0 = no fault detected by parallel detection.
0 = no fault detected by parallel detection.
0 = no fault detected by parallel detection.
1 = link partner has next page capability
1 = link partner has next page capability
1 = link partner has next page capability
1 = link partner has next page capability
0 = link partner does not have next page capability
0 = link partner does not have next page capability
0 = link partner does not have next page capability
0 = link partner does not have next page capability
1 = local device has next page capability
1 = local device has next page capability
1 = local device has next page capability
1 = local device has next page capability
1 = local device has next page capability
1 = local device has next page capability
0 = local device does not have next page capability
0 = local device does not have next page capability
0 = local device does not have next page capability
0 = local device does not have next page capability
1 = new page received; 0 = new page not yet received
1 = new page received; 0 = new page not yet received
1 = new page received; 0 = new page not yet received
1 = new page received; 0 = new page not yet received
1 = new page received; 0 = new page not yet received
1 = new page received; 0 = new page not yet received
1 = link partner has auto-negotiation capability
1 = link partner has auto-negotiation capability
1 = link partner has auto-negotiation capability
1 = link partner has auto-negotiation capability
1 = link partner has auto-negotiation capability
1 = link partner has auto-negotiation capability
0 = link partner does not have auto-negotiation capability
0 = link partner does not have auto-negotiation capability
0 = link partner does not have auto-negotiation capability
0 = link partner does not have auto-negotiation capability
1 = additional next page(s) will follow; 0 = last page
1 = additional next page(s) will follow; 0 = last page
1 = additional next page(s) will follow; 0 = last page
1 = additional next page(s) will follow; 0 = last page
1 = additional next page(s) will follow; 0 = last page
1 = additional next page(s) will follow; 0 = last page
1 = message page; 0 = unformatted page
1 = message page; 0 = unformatted page
1 = message page; 0 = unformatted page
1 = message page; 0 = unformatted page
1 = message page; 0 = unformatted page
1 = message page; 0 = unformatted page
1 = will comply with message
1 = will comply with message
1 = will comply with message
1 = will comply with message
1 = will comply with message
1 = will comply with message
0 = cannot comply with message
0 = cannot comply with message
0 = cannot comply with message
0 = cannot comply with message
1 = previous value of the transmitted link code word
1 = previous value of the transmitted link code word
1 = previous value of the transmitted link code word
1 = previous value of the transmitted link code word
1 = previous value of the transmitted link code word
1 = previous value of the transmitted link code word
equaled logic One; 0 = logic Zero
equaled logic One; 0 = logic Zero
equaled logic One; 0 = logic Zero
equaled logic One; 0 = logic Zero
11-bit wide fi eld to encode 2048 messages
11-bit wide fi eld to encode 2048 messages
11-bit wide fi eld to encode 2048 messages
11-bit wide fi eld to encode 2048 messages
11-bit wide fi eld to encode 2048 messages
11-bit wide fi eld to encode 2048 messages
1 = additional Next Page(s) will follow; 0 = last page
1 = additional Next Page(s) will follow; 0 = last page
1 = additional Next Page(s) will follow; 0 = last page
1 = additional Next Page(s) will follow; 0 = last page
1 = additional Next Page(s) will follow; 0 = last page
1 = additional Next Page(s) will follow; 0 = last page
1 = successful receipt of link word
1 = successful receipt of link word
1 = successful receipt of link word
1 = successful receipt of link word
1 = successful receipt of link word
1 = successful receipt of link word
0 = no successful receipt of link word
0 = no successful receipt of link word
0 = no successful receipt of link word
0 = no successful receipt of link word
1 = Message Page; 0 = Unformatted Page
1 = Message Page; 0 = Unformatted Page
1 = Message Page; 0 = Unformatted Page
1 = Message Page; 0 = Unformatted Page
1 = Message Page; 0 = Unformatted Page
1 = Message Page; 0 = Unformatted Page
1 = able to act on the information
1 = able to act on the information
1 = able to act on the information
1 = able to act on the information
1 = able to act on the information
1 = able to act on the information
0 = not able to act on the information
0 = not able to act on the information
0 = not able to act on the information
0 = not able to act on the information
1 = previous value of transmitted Link Code Word equal
1 = previous value of transmitted Link Code Word equal
1 = previous value of transmitted Link Code Word equal
1 = previous value of transmitted Link Code Word equal
1 = previous value of transmitted Link Code Word equal
1 = previous value of transmitted Link Code Word equal
to logic zero; 0 = previous value of transmitted Link Code
to logic zero; 0 = previous value of transmitted Link Code
to logic zero; 0 = previous value of transmitted Link Code
to logic zero; 0 = previous value of transmitted Link Code
Word equal to logic one
Word equal to logic one
Word equal to logic one
Word equal to logic one
19
Mode
Mode
Mode
Mode
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
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
RO
RO
RO
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
RO/LH
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
RO
RO
RO
RO
RO
RO
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
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
(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
0
0
0
0
0
0
00001
00001
00001
00001
00001
00001
0
0
0
0
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
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
001
001
001
001
001
001
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
M9999-030106