Description
Conformity
1 Preface
2 Introduction
3 Pin Descriptions and Assignments
4 Global Functional Descriptions
5 Serial Peripheral Interface (SPI)
6 Ethernet MAC
7 Integrated PHY
8 Application Information
9 Operational Characteristics
10 Packaging Information
11 Register Descriptions
- 11.1 Open Alliance 10BASE-T1x MAC-PHY Standard Registers
- 11.2 MAC Registers
- 11.3 PHY PCS Registers
- 11.4 PHY PMA/PMD Registers
- 11.5 PHY Vendor Specific Registers
  - 11.5.1 Control 1 Register
    Control 1 Register
  - 11.5.2 Status 1 Register
    Status 1 Register
  - 11.5.3 Status 2 Register
    Status 2 Register
  - 11.5.4 Status 3 Register
    Status 3 Register
  - 11.5.5 Interrupt Mask 1 Register
    Interrupt Mask 1 Register
  - 11.5.6 Interrupt Mask 2 Register
    Interrupt Mask 2 Register
  - 11.5.7 Counter Control Register
    Counter Control Register
  - 11.5.8 Transmit Opportunity Count (High)
    Transmit Opportunity Count (High)
  - 11.5.9 Transmit Opportunity Count (Low)
    Transmit Opportunity Count (Low)
  - 11.5.10 BEACON Count (High)
    BEACON Count (High)
  - 11.5.11 BEACON Count (Low)
    BEACON Count (Low)
  - 11.5.12 PLCA Multiple ID 0 Register
    PLCA Multiple ID 0 Register
  - 11.5.13 PLCA Multiple ID 1 Register
    PLCA Multiple ID 1 Register
  - 11.5.14 PLCA Multiple ID 2 Register
    PLCA Multiple ID 2 Register
  - 11.5.15 PLCA Multiple ID 3 Register
    PLCA Multiple ID 3 Register
  - 11.5.16 PLCA Reconciliation Sublayer Status
    PLCA Reconciliation Sublayer Status
  - 11.5.17 Port Management 2
    Port Management 2
  - 11.5.18 Inactivity Watchdog Timeout (High)
    Inactivity Watchdog Timeout (High)
  - 11.5.19 Inactivity Watchdog Timeout (Low)
    Inactivity Watchdog Timeout (Low)
  - 11.5.20 Transmit Match Control Register
    Transmit Match Control Register
  - 11.5.21 Transmit Match Pattern (High) Register
    Transmit Match Pattern (High) Register
  - 11.5.22 Transmit Match Pattern (Low) Register
    Transmit Match Pattern (Low) Register
  - 11.5.23 Transmit Match Mask (High) Register
    Transmit Match Mask (High) Register
  - 11.5.24 Transmit Match Mask (Low) Register
    Transmit Match Mask (Low) Register
  - 11.5.25 Transmit Match Location Register
    Transmit Match Location Register
  - 11.5.26 Transmit Matched Packet Delay Register
    Transmit Matched Packet Delay Register
  - 11.5.27 Receive Match Control Register
    Receive Match Control Register
  - 11.5.28 Receive Match Pattern (High) Register
    Receive Match Pattern (High) Register
  - 11.5.29 Receive Match Pattern (Low) Register
    Receive Match Pattern (Low) Register
  - 11.5.30 Receive Match Mask (High) Register
    Receive Match Mask (High) Register
  - 11.5.31 Receive Match Mask (Low) Register
    Receive Match Mask (Low) Register
  - 11.5.32 Receive Match Location Register
    Receive Match Location Register
  - 11.5.33 Receive Matched Packet Delay Register
    Receive Matched Packet Delay Register
  - 11.5.34 Credit Based Shaper Stop Threshold (High) Register
    Credit Based Shaper Stop Threshold (High) Register
  - 11.5.35 Credit Based Shaper Stop Threshold (Low) Register
    Credit Based Shaper Stop Threshold (Low) Register
  - 11.5.36 Credit Based Shaper Start Threshold (High) Register
    Credit Based Shaper Start Threshold (High) Register
  - 11.5.37 Credit Based Shaper Start Threshold (Low) Register
    Credit Based Shaper Start Threshold (Low) Register
  - 11.5.38 Credit Based Shaper Slope Control Register
    Credit Based Shaper Slope Control Register
  - 11.5.39 Credit Based Shaper Top Limit (High) Register
    Credit Based Shaper Top Limit (High) Register
  - 11.5.40 Credit Based Shaper Top Limit (Low) Register
    Credit Based Shaper Top Limit (Low) Register
  - 11.5.41 Credit Based Shaper Bottom Limit (High) Register
    Credit Based Shaper Bottom Limit (High) Register
  - 11.5.42 Credit Based Shaper Bottom Limit (Low) Register
    Credit Based Shaper Bottom Limit (Low) Register
  - 11.5.43 Credit Based Shaper Credit Counter (High) Register
    Credit Based Shaper Credit Counter (High) Register
  - 11.5.44 Credit Based Shaper Credit Counter (Low) Register
    Credit Based Shaper Credit Counter (Low) Register
  - 11.5.45 Credit Based Shaper Control Register
    Credit Based Shaper Control Register
  - 11.5.46 PLCA Skip Control Register
    PLCA Skip Control Register
  - 11.5.47 PLCA Transmit Opportunity Skip Register
    PLCA Transmit Opportunity Skip Register
  - 11.5.48 Application Controlled Media Access Control Register
    Application Controlled Media Access Control Register
  - 11.5.49 Sleep Control 0 Register
    Sleep Control 0 Register
  - 11.5.50 Sleep Control 1 Register
    Sleep Control 1 Register
  - 11.5.51 Collision Detector Control 0 Register
    Collision Detector Control 0 Register
  - 11.5.52 SQI Control Register
    SQI Control Register
  - 11.5.53 SQI Status 0 Register
    SQI Status 0 Register
  - 11.5.54 SQI Configuration 0 Register
    SQI Configuration 0 Register
  - 11.5.55 SQI Configuration 2 Register
    SQI Configuration 2 Register
  - 11.5.56 Analog Control 5
    Analog Control 5
  - 11.5.57 OPEN Alliance Map ID and Version Register
    OPEN Alliance Map ID and Version Register
  - 11.5.58 PLCA Control 0 Register
    PLCA Control 0 Register
  - 11.5.59 PLCA Control 1 Register
    PLCA Control 1 Register
  - 11.5.60 PLCA Status Register
    PLCA Status Register
  - 11.5.61 PLCA Transmit Opportunity Timer Register
    PLCA Transmit Opportunity Timer Register
  - 11.5.62 PLCA Burst Mode Register
    PLCA Burst Mode Register
- 11.6 Miscellaneous Register Descriptions
Data Sheet Revision History
Microchip Information

11.5.24 Transmit Match Mask (Low) Register

Name:	TXMMSKL
Address:	0x0044


Bit	15	14	13	12	11	10	9	8
	TXMMSK[15:8]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0


Bit	7	6	5	4	3	2	1	0
	TXMMSK[7:0]
Access	R/W	R/W	R/W	R/W	R/W	R/W	R/W	R/W
Reset	0	0	0	0	0	0	0	0

Bits 15:0 – TXMMSK[15:0] Transmit Match Mask (Low)

Lower 16 bits of the 24-bit transmit match mask. A ‘1’ in any bit will cause the corresponding bit in the Transmit Match Pattern field to be ignored. A ‘0’ will cause the corresponding bit in the Transmit Match Pattern field to be compared.

Note: Triggering of transmit packets matching at the Start-of-Frame Delimiter (SFD) requires that all bits within the Transmit Match Pattern field be disabled from the compare by writing the Transmit Match Mask registers to 0xFFFFFF. Additionally, the Transmit Match Location must be configured to 0x0000.

The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.