Manuals / Texas Instruments / Computer Equipment / Network Card

Texas Instruments TSB12LV26 manual Isochronous Transmit Interrupt Event Register

Models: TSB12LV26

1 91
Download 91 pages 7.41 Kb
Page 58
Image 58

4.23 Isochronous Transmit Interrupt Event Register

The isochronous transmit interrupt event set/clear register reflects the interrupt state of the isochronous transmit contexts. An interrupt is generated on behalf of an isochronous transmit context if an OUTPUT_LAST* command completes and its interrupt bits are set. Upon determining that the interrupt event register (OHCI offset 80h/84h, see Section 4.21) isochTx (bit 6) interrupt has occurred, software can check this register to determine which context(s) caused the interrupt. The interrupt bits are set by an asserting edge of the corresponding interrupt signal, or by writing a 1 in the corresponding bit in the set register. The only mechanism to clear a bit in this register is to write a 1 to the corresponding bit in the clear register. See Table 4±16 for a complete description of the register contents.

Bit

31

30

29

28

27

26

 

25

24

23

22

 

21

20

19

18

17

16

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Name

 

 

 

 

 

 

Isochronous transmit interrupt event

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

R

R

R

R

R

 

R

R

R

R

R

R

R

R

R

R

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

0

0

0

0

0

0

0

0

0

 

0

0

0

0

0

0

Bit

15

 

14

13

12

11

 

10

9

8

7

6

 

5

4

3

2

1

0

Name

 

 

 

 

 

 

 

 

Isochronous transmit interrupt event

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Type

R

 

R

R

R

R

 

R

 

R

R

RSC

RSC

 

RSC

RSC

RSC

RSC

RSC

RSC

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Default

0

 

0

0

0

0

 

0

 

0

0

X

X

 

X

X

X

X

X

X

 

Register:

Isochronous transmit interrupt event

 

 

 

 

 

 

 

 

 

Type:

 

Read/Set/Clear, Read-only

 

 

 

 

 

 

 

 

 

 

 

Offset:

 

90h

set register

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

94h

clear register [returns IsoXmitEvent and IsoXmitMask when read]

 

 

 

Default:

0000 00XXh

 

Table 4±16. Isochronous Transmit Interrupt Event Register Description

 

 

 

 

 

BIT

FIELD NAME

 

TYPE

DESCRIPTION

 

 

 

 

 

31±8

RSVD

 

R

Reserved. Bits 31±8 return 0s when read.

 

 

 

 

 

7

isoXmit7

 

RSC

Isochronous transmit channel 7 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

6

isoXmit6

 

RSC

Isochronous transmit channel 6 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

5

isoXmit5

 

RSC

Isochronous transmit channel 5 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

4

isoXmit4

 

RSC

Isochronous transmit channel 4 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

3

isoXmit3

 

RSC

Isochronous transmit channel 3 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

2

isoXmit2

 

RSC

Isochronous transmit channel 2 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

1

isoXmit1

 

RSC

Isochronous transmit channel 1 caused the interrupt event register bit 6 (isochTx) interrupt.

 

 

 

 

 

0

isoXmit0

 

RSC

Isochronous transmit channel 0 caused the interrupt event register bit 6 (isochTx) interrupt.

4±20

Page 57 Page 59
Page 58
Image 58
Texas Instruments TSB12LV26 manual Isochronous Transmit Interrupt Event Register, Isochronous transmit interrupt event
Page 57 Page 59

TSB12LV26 specifications

The Texas Instruments TSB12LV26 is a high-performance, low-voltage transceiver designed for Serial Bus applications. It is widely recognized for its robust features and versatility, making it a popular choice among engineers and designers in various industries. One of the primary features of the TSB12LV26 is its support for high-speed data transmission, enabling it to operate at speeds up to 400 Mbps. This capability is essential for applications that demand rapid data transfer, such as in multimedia and communication systems.

The TSB12LV26 is part of the IEEE 1394 standard, also known as FireWire, which is widely used for connecting devices like digital cameras, external hard drives, and printers. The chip operates within a voltage range of 2.7V to 3.6V, making it suitable for low-power applications where energy efficiency is critical. The integration of advanced Low-Voltage Differential Signaling (LVDS) technology within the TSB12LV26 enhances signal integrity and reduces electromagnetic interference, resulting in more reliable performance over longer distances.

In terms of its physical characteristics, the TSB12LV26 is available in a compact 48-pin HTQFP package, which is beneficial for space-constrained designs. The device features a comprehensive set of input and output pins, allowing for flexible connectivity options. Additionally, the TSB12LV26 includes advanced power management features, including low-power modes that help extend battery life in portable devices.

Another significant advantage of the TSB12LV26 is its capability for peer-to-peer communication, enabling devices to connect and communicate directly without the need for a central controller. This functionality supports a wide range of device configurations and simplifies system architecture. Furthermore, the transceiver offers built-in support for asynchronous and isochronous data transfer, making it adaptable for various application requirements.

The TSB12LV26 also adheres to stringent EMI and ESD protection standards, ensuring reliable operation in challenging environments. With a rich feature set, excellent performance characteristics, and compliance with industry standards, the Texas Instruments TSB12LV26 remains an ideal choice for engineers looking to implement high-speed and reliable communication in their designs. Overall, it represents a significant advancement in the field of data transmission technology, making it a preferred component for numerous electronic applications.