Texas Instruments TMS320TCI6486 manual Receive Buffer Offset Register Rxbufferoffset

Models: TMS320TCI6486

1 160
Download 160 pages 19.23 Kb
Page 121
Image 121

www.ti.com

EMAC Port Registers

5.25 Receive Buffer Offset Register (RXBUFFEROFFSET)

The receive buffer offset register (RXBUFFEROFFSET) is shown in Figure 67 and described in Table 61.

 

Figure 67. Receive Buffer Offset Register (RXBUFFEROFFSET)

31

16

 

 

 

Reserved

 

 

 

R-0

15

0

RXBUFFEROFFSET

R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 61. Receive Buffer Offset Register (RXBUFFEROFFSET) Field Descriptions

Bit

Field

Value

Description

 

 

 

 

31-16

Reserved

0

Reserved

 

 

 

 

15-0

RXBUFFEROFFSET

 

Receive buffer offset value. These bits are written by the EMAC into each frame SOP

 

 

 

buffer descriptor Buffer Offset field. The frame data begins after the RXBUFFEROFFSET

 

 

 

value of bytes. A value of 0 indicates that there are no unused bytes at the beginning of

 

 

 

the data and that valid data begins on the first byte of the buffer. A value of Fh (15)

 

 

 

indicates that the first 15 bytes of the buffer are to be ignored by the EMAC and that valid

 

 

 

buffer data starts on byte 16 of the buffer. This value is used for all channels.

 

 

 

 

SPRUEF8F –March 2006 –Revised November 2010

C6472/TCI6486 EMAC/MDIO

121

Submit Documentation Feedback

 

 

Copyright © 2006–2010, Texas Instruments Incorporated

Page 121
Image 121
Texas Instruments TMS320TCI6486 manual Receive Buffer Offset Register Rxbufferoffset