LAN8670/1

Description
Conformity
1 Preface
2 Introduction
3 Pin Description and Configuration
4 Functional Descriptions
5 Register Descriptions
- 5.1 SMI Basic Control and Status Registers
- 5.2 PMA/PMD Registers
- 5.3 PCS Registers
- 5.4 Miscellaneous Registers
  - 5.4.1 Configuration Protection Control
    Configuration Protection Control
  - 5.4.2 Control 1 Register
    Control 1 Register
  - 5.4.3 Control 1 Register - Rev D
    Control 1 Register - Rev D
  - 5.4.4 Pin Control Register
    Pin Control Register
  - 5.4.5 Link Status Control - Rev D
    Link Status Control - Rev D
  - 5.4.6 Status 1 Register
    Status 1 Register
  - 5.4.7 Status 1 Register - Rev D
    Status 1 Register - Rev D
  - 5.4.8 Status 2 Register
    Status 2 Register
  - 5.4.9 Status 2 Register - Rev D
    Status 2 Register - Rev D
  - 5.4.10 Status 3 Register
    Status 3 Register
  - 5.4.11 Interrupt Mask 1 Register
    Interrupt Mask 1 Register
  - 5.4.12 Interrupt Mask 1 Register - Rev D
    Interrupt Mask 1 Register - Rev D
  - 5.4.13 Interrupt Mask 2 Register
    Interrupt Mask 2 Register
  - 5.4.14 Interrupt Mask 2 Register - Rev D
    Interrupt Mask 2 Register - Rev D
  - 5.4.15 Counter Control Register
    Counter Control Register
  - 5.4.16 Transmit Opportunity Count (High)
    Transmit Opportunity Count (High)
  - 5.4.17 Transmit Opportunity Count (Low)
    Transmit Opportunity Count (Low)
  - 5.4.18 BEACON Count (High)
    BEACON Count (High)
  - 5.4.19 BEACON Count (Low)
    BEACON Count (Low)
  - 5.4.20 PLCA Multiple ID 0 Register
    PLCA Multiple ID 0 Register
  - 5.4.21 PLCA Multiple ID 1 Register
    PLCA Multiple ID 1 Register
  - 5.4.22 PLCA Multiple ID 2 Register
    PLCA Multiple ID 2 Register
  - 5.4.23 PLCA Multiple ID 3 Register
    PLCA Multiple ID 3 Register
  - 5.4.24 PLCA Reconciliation Sublayer Control 1
    PLCA Reconciliation Sublayer Control 1
  - 5.4.25 PLCA Reconciliation Sublayer Control 1 - Rev D
    PLCA Reconciliation Sublayer Control 1 - Rev D
  - 5.4.26 PLCA Reconciliation Sublayer Status
    PLCA Reconciliation Sublayer Status
  - 5.4.27 Port Management 2
    Port Management 2
  - 5.4.28 Port Management 2 - Rev D
    Port Management 2 - Rev D
  - 5.4.29 Inactivity Watchdog Timeout (High)
    Inactivity Watchdog Timeout (High)
  - 5.4.30 Inactivity Watchdog Timeout (High) - Rev D
    Inactivity Watchdog Timeout (High) - Rev D
  - 5.4.31 Inactivity Watchdog Timeout (Low)
    Inactivity Watchdog Timeout (Low)
  - 5.4.32 Inactivity Watchdog Timeout (Low) - Rev D
    Inactivity Watchdog Timeout (Low) - Rev D
  - 5.4.33 Transmit Match Control Register
    Transmit Match Control Register
  - 5.4.34 Transmit Match Pattern (High) Register
    Transmit Match Pattern (High) Register
  - 5.4.35 Transmit Match Pattern (Low) Register
    Transmit Match Pattern (Low) Register
  - 5.4.36 Transmit Matched Packet Delay Register
    Transmit Matched Packet Delay Register
  - 5.4.37 Receive Match Control Register
    Receive Match Control Register
  - 5.4.38 Receive Match Pattern (High) Register
    Receive Match Pattern (High) Register
  - 5.4.39 Receive Match Pattern (Low) Register
    Receive Match Pattern (Low) Register
  - 5.4.40 Receive Matched Packet Delay Register
    Receive Matched Packet Delay Register
  - 5.4.41 Credit Based Shaper Stop Threshold (High) Register
    Credit Based Shaper Stop Threshold (High) Register
  - 5.4.42 Credit Based Shaper Stop Threshold (Low) Register
    Credit Based Shaper Stop Threshold (Low) Register
  - 5.4.43 Credit Based Shaper Start Threshold (High) Register
    Credit Based Shaper Start Threshold (High) Register
  - 5.4.44 Credit Based Shaper Start Threshold (Low) Register
    Credit Based Shaper Start Threshold (Low) Register
  - 5.4.45 Credit Based Shaper Slope Control Register
    Credit Based Shaper Slope Control Register
  - 5.4.46 Credit Based Shaper Top Limit (High) Register
    Credit Based Shaper Top Limit (High) Register
  - 5.4.47 Credit Based Shaper Top Limit (Low) Register
    Credit Based Shaper Top Limit (Low) Register
  - 5.4.48 Credit Based Shaper Bottom Limit (High) Register
    Credit Based Shaper Bottom Limit (High) Register
  - 5.4.49 Credit Based Shaper Bottom Limit (Low) Register
    Credit Based Shaper Bottom Limit (Low) Register
  - 5.4.50 Credit Based Shaper Credit Counter (High) Register
    Credit Based Shaper Credit Counter (High) Register
  - 5.4.51 Credit Based Shaper Credit Counter (Low) Register
    Credit Based Shaper Credit Counter (Low) Register
  - 5.4.52 Credit Based Shaper Control Register
    Credit Based Shaper Control Register
  - 5.4.53 PLCA Skip Control Register
    PLCA Skip Control Register
  - 5.4.54 PLCA Transmit Opportunity Skip Register
    PLCA Transmit Opportunity Skip Register
  - 5.4.55 Application Controlled Media Access Control Register
    Application Controlled Media Access Control Register
  - 5.4.56 Sleep Control 0 Register
    Sleep Control 0 Register
  - 5.4.57 Sleep Control 0 Register - Rev D
    Sleep Control 0 Register - Rev D
  - 5.4.58 Sleep Control 1 Register
    Sleep Control 1 Register
  - 5.4.59 Sleep Control 1 Register - Rev D
    Sleep Control 1 Register - Rev D
  - 5.4.60 Collision Detector Control 0 Register
    Collision Detector Control 0 Register
  - 5.4.61 Collision Detector Control 0 Register - Rev D
    Collision Detector Control 0 Register - Rev D
  - 5.4.62 SQI Control Register
    SQI Control Register
  - 5.4.63 SQI Control Register - Rev D
    SQI Control Register - Rev D
  - 5.4.64 SQI Status 0 Register
    SQI Status 0 Register
  - 5.4.65 SQI Status 0 Register - Rev D
    SQI Status 0 Register - Rev D
  - 5.4.66 SQI Configuration 0 Register
    SQI Configuration 0 Register
  - 5.4.67 SQI Configuration 0 Register - Rev D
    SQI Configuration 0 Register - Rev D
  - 5.4.68 SQI Configuration 2 Register
    SQI Configuration 2 Register
  - 5.4.69 SQI Configuration 2 Register - Rev D
    SQI Configuration 2 Register - Rev D
  - 5.4.70 Pad Control 3 Register
    Pad Control 3 Register
  - 5.4.71 Analog Control 5
    Analog Control 5
  - 5.4.72 OPEN Alliance Map ID and Version Register
    OPEN Alliance Map ID and Version Register
  - 5.4.73 OPEN Alliance Map ID and Version Register - Rev D
    OPEN Alliance Map ID and Version Register - Rev D
  - 5.4.74 PLCA Control 0 Register
    PLCA Control 0 Register
  - 5.4.75 PLCA Control 1 Register
    PLCA Control 1 Register
  - 5.4.76 PLCA Status Register
    PLCA Status Register
  - 5.4.77 PLCA Transmit Opportunity Timer Register
    PLCA Transmit Opportunity Timer Register
  - 5.4.78 PLCA Burst Mode Register
    PLCA Burst Mode Register
  - 5.4.79 PLCA Diagnostics Register - Rev D
    PLCA Diagnostics Register - Rev D
  - 5.4.80 Advanced Diagnostic Features Capability - Rev D
    Advanced Diagnostic Features Capability - Rev D
  - 5.4.81 Harness Defect Detection - Rev D
    Harness Defect Detection - Rev D
  - 5.4.82 Dynamic Channel Quality Transmit Opportunity ID Register - Rev D
    Dynamic Channel Quality Transmit Opportunity ID Register - Rev D
  - 5.4.83 Signal Quality Index Register - Rev D
    Signal Quality Index Register - Rev D
  - 5.4.84 Signal Quality Index Plus Register - Rev D
    Signal Quality Index Plus Register - Rev D
  - 5.4.85 Topology Discovery Control Register - Rev D
    Topology Discovery Control Register - Rev D
  - 5.4.86 Topology Discovery Status Register - Rev D
    Topology Discovery Status Register - Rev D
  - 5.4.87 Topology Discovery Distance measurement Result Register (Low) - Rev D
    Topology Discovery Distance measurement Result Register (Low) - Rev D
  - 5.4.88 Topology Discovery Distance measurement Result Register (High) - Rev D
    Topology Discovery Distance measurement Result Register (High) - Rev D
  - 5.4.89 Topology Discovery Internal Delay Result Register (Low) - Rev D
    Topology Discovery Internal Delay Result Register (Low) - Rev D
  - 5.4.90 Topology Discovery Internal Delay Result Register (High) - Rev D
    Topology Discovery Internal Delay Result Register (High) - Rev D
  - 5.4.91 Topology Discovery Measured Node Delay measurement Result Register (Low) - Rev D
    Topology Discovery Measured Node Delay measurement Result Register (Low) - Rev D
  - 5.4.92 Topology Discovery Measured Node Delay measurement Result Register (High) - Rev D
    Topology Discovery Measured Node Delay measurement Result Register (High) - Rev D
  - 5.4.93 Topology Discovery Measured Node Measurement Duration Register - Rev D
    Topology Discovery Measured Node Measurement Duration Register - Rev D
  - 5.4.94 Topology Discovery Advanced Control Register - Rev D
    Topology Discovery Advanced Control Register - Rev D
  - 5.4.95 Wake Sleep Status Register - Rev D
    Wake Sleep Status Register - Rev D
  - 5.4.96 Wake Sleep Control Register
    Wake Sleep Control Register
6 Application Information
7 Operational Characteristics
8 Packaging Information
9 Package Marking Information
Product Identification System
Data Sheet Revision History
Microchip Information

5.4.5 Link Status Control - Rev D

This register is only valid for devices of Revision D0 and later.

Name:	LSCTL - Rev D
Address:	0x0012


Bit	15	14	13	12	11	10	9	8
	LSPSEL[2:0]			LSCFG[1:0]		LSTMR[1:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	RO
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
								LSSEM
Access	RO	RO	RO	RO	RO	RO	RO	R/W
Reset	0	0	0	0	0	0	0	0

Bits 15:13 – LSPSEL[2:0] Link Status Pin Select

When enabled, this field controls which pin is driven to reflect the link status state.

Value	Description
`000`	Disabled; Link status is not output to a pin.
`001`	LAN8671 pin 17 (WAKE_OUT)
`010`	LAN8670 pin 9 (GPIO0) LAN8671 pin 7 (GPIO0) This overrides the GPIO0SS settings in the PINCTRL register
`011`	LAN8670 pin 11 (TXER/ACMA)
`others`	Reserved

Bits 12:11 – LSCFG[1:0] Link Status Configuration

This field configures the link status behavior.

Value	Description
`00`	Fixed - Link Status is always zero indicating “no link” (default)
`01`	PLCA Status - When PLCA is enabled, link status reflects PLCA status.
`10`	Semaphore - Link status is controlled by the value written into the LSSEM bit.
`11`	Activity - When PLCA is enabled and the node is configured as a PLCA follower, link status will be set when PLCA BEACONs are actively detected. When configured as a PLCA coordinator, link status will be set when a packet has been received from another device on the mixing segment.

Bits 10:9 – LSTMR[1:0] Link Status Timer

This field configured the time for link status to return to false once link goes away.

Value	Description
`00`	15 ms
`01`	100 ms
`10`	500 ms
`11`	1000 ms

Bit 0 – LSSEM Link Status Semaphore

When link status is set to “semaphore” mode, LSCFG =10b, Semaphore, the value written to this bit controls the state of the IEEE Link Status bit as well as the output state of the Link Status pin, if enabled.

Value	Description
`0`	Link status is set to false
`1`	Link status is set to true

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