List of Tables

 

1

EMAC and MDIO Signals for MII Interface

16

 

2

EMAC and MDIO Signals for GMII Interface

17

 

3

Ethernet Frame Description

19

 

4

Basic Descriptor Description

21

 

5

EMAC Control Module Interrupts

32

 

6

Receive Frame Treatment Summary

48

 

7

Middle of Frame Overrun Treatment

49

 

8

Emulation Control

60

 

9

EMAC Control Module Registers

61

 

10

EMAC Control Module Identification and Version Register (CMIDVER) Field Descriptions

61

 

11

EMAC Control Module Software Reset Register (CMSOFTRESET) Field Descriptions

.........................

62

 

12

EMAC Control Module Emulation Control Register (CMEMCONTROL) Field Descriptions

62

 

13

EMAC Control Module Interrupt Control Register (CMINTCTRL) Field Descriptions

63

 

14

EMAC Control Module Receive Threshold Interrupt Enable Register (CMRXTHRESHINTEN) Field

 

 

 

Descriptions

64

 

15

EMAC Control Module Receive Interrupt Enable Register (CMRXINTEN) Field Descriptions

64

 

16

EMAC Control Module Transmit Interrupt Enable Register (CMTXINTEN) Field Descriptions

65

 

17

EMAC Control Module Miscellaneous Interrupt Enable Register (CMMISCINTEN) Field Descriptions

66

 

18

EMAC Control Module Receive Threshold Interrupt Status Register (CMRXTHRESHINTSTAT) Field

 

 

 

Descriptions

67

 

19

EMAC Control Module Receive Interrupt Status Register (CMRXINTSTAT) Field Descriptions

67

 

20

EMAC Control Module Transmit Interrupt Status Register (CMTXINTSTAT) Field Descriptions

68

 

21

EMAC Control Module Miscellaneous Interrupt Status Register (CMMISCINTSTAT) Field Descriptions

69

 

22

EMAC Control Module Receive Interrupts per Millisecond Register (CMRXINTMAX) Field Descriptions

70

 

23

EMAC Control Module Transmit Interrupts per Millisecond Register (CMTXINTMAX) Field Descriptions

70

 

24

Management Data Input/Output (MDIO) Registers

71

 

25

MDIO Version Register (VERSION) Field Descriptions

71

 

26

MDIO Control Register (CONTROL) Field Descriptions

72

 

27

PHY Acknowledge Status Register (ALIVE) Field Descriptions

73

 

28

PHY Link Status Register (LINK) Field Descriptions

73

 

29

MDIO Link Status Change Interrupt (Unmasked) Register (LINKINTRAW) Field Descriptions

74

 

30

MDIO Link Status Change Interrupt (Masked) Register (LINKINTMASKED) Field Descriptions

75

 

31

MDIO User Command Complete Interrupt (Unmasked) Register (USERINTRAW) Field Descriptions

76

 

32

MDIO User Command Complete Interrupt (Masked) Register (USERINTMASKED) Field Descriptions

77

 

33

MDIO User Command Complete Interrupt Mask Set Register (USERINTMASKSET) Field Descriptions

78

 

34

MDIO User Command Complete Interrupt Mask Clear Register (USERINTMASKCLEAR) Field

 

 

 

Descriptions

79

 

35

MDIO User Access Register 0 (USERACCESS0) Field Descriptions

80

 

36

MDIO User PHY Select Register 0 (USERPHYSEL0) Field Descriptions

81

 

37

MDIO User Access Register 1 (USERACCESS1) Field Descriptions

82

 

38

MDIO User PHY Select Register 1 (USERPHYSEL1) Field Descriptions

83

 

39

Ethernet Media Access Controller (EMAC) Registers

84

 

40

Transmit Identification and Version Register (TXIDVER) Field Descriptions

87

 

41

Transmit Control Register (TXCONTROL) Field Descriptions

87

 

42

Transmit Teardown Register (TXTEARDOWN) Field Descriptions

88

 

43

Receive Identification and Version Register (RXIDVER) Field Descriptions

89

 

44

Receive Control Register (RXCONTROL) Field Descriptions

89

 

45

Receive Teardown Register (RXTEARDOWN) Field Descriptions

90

 

46

Transmit Interrupt Status (Unmasked) Register (TXINTSTATRAW) Field Descriptions

91

 

47

Transmit Interrupt Status (Masked) Register (TXINTSTATMASKED) Field Descriptions

92

8

List of Tables

SPRUEQ6–December 2007

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Texas Instruments TMS320DM646x manual List of Tables

TMS320DM646x specifications

The Texas Instruments TMS320DM646x series is a powerful family of digital media processors designed to handle high-performance applications in video, imaging, and audio processing. These devices leverage advanced technologies to deliver efficient processing capabilities for a variety of embedded systems, making them ideal for multimedia solutions.

At the core of the TMS320DM646x is the versatile DSP architecture, which optimizes performance for digital signal processing tasks. This architecture allows for real-time processing, enabling the devices to handle complex algorithms necessary for image and video compression, thereby meeting the rigorous demands of modern multimedia applications.

One of the standout features of the TMS320DM646x series is its dual-core architecture. This consists of a Digital Signal Processor (DSP) alongside an ARM-based application processor. The DSP is predominantly employed for critical processing tasks, allowing it to execute high-throughput data streams efficiently, while the ARM processor manages control tasks and user interfaces. This division of labor enhances overall system performance and responsiveness.

The series supports a wide range of video formats and technologies, including HD video encoding and decoding, which accommodates HD resolution content essential for today’s multimedia applications. Furthermore, the TMS320DM646x integrates hardware accelerators for video compression standards such as H.264 and MPEG-4, which significantly reduce the processing burden on the CPU, resulting in lower power consumption and higher efficiency.

Networking capabilities are another significant feature of the TMS320DM646x. With support for Ethernet, the device can handle streaming media applications and connectivity, facilitating the transmission of high-quality audio and video over the internet. This connectivity is crucial for developing robust IPTV and streaming solutions.

Power management is a primary focus in the design of the TMS320DM646x series. The processors are built to operate efficiently with minimal power consumption, making them suitable for portable and battery-operated devices. The low power characteristics do not compromise performance, enabling high computational capabilities while maintaining energy efficiency.

Overall, the Texas Instruments TMS320DM646x series offers an exceptional combination of processing power, advanced multimedia capabilities, and energy efficiency. It optimally supports a wide array of applications, from video processing and image analysis to audio encoding. This comprehensive feature set, along with its robust architecture, positions the TMS320DM646x as a leading choice for developers in the digital media space.