01.08.2013 Views

Chapter 10 Memory Subsystem.pdf

Chapter 10 Memory Subsystem.pdf

Chapter 10 Memory Subsystem.pdf

SHOW MORE
SHOW LESS

Create successful ePaper yourself

Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.

Public Version<br />

www.ti.com SDRAM Controller (SDRC) <strong>Subsystem</strong><br />

Bits Field Name Description Type Reset<br />

<strong>10</strong> UNEXPECTEDADD Request targeting non-defined rotation contexts (such as contexts RW 0x0<br />

12, 13, 14, or 15) or non-defined L3 Interconnect request signals<br />

used for context number decoding.<br />

Read 0x0: No unexpected request received<br />

Write 0x0: No effect<br />

Read 0x1: A request has been received on the interconnect with<br />

address decoding targeting rotation contexts 12, 13, 14, or 15, or a<br />

signal used for context number decoding was undefined.<br />

Write 0x1: Clear UNEXPECTEDADD bit.<br />

9 UNEXPECTEDREQ Unexpected request received during SMS idle state RW 0x0<br />

Read 0x0: No unexpected request received<br />

Write 0x0: No effect<br />

Read 0x1: A request has been received on the interconnect after the<br />

SMS was put in idle mode by the system power manager.<br />

Write 0x1: Clear the UNEXPECTEDREQ bit field.<br />

8 ILLEGALCMD Illegal command on the L3 interface RW 0x0<br />

Read 0x0: No illegal command received<br />

Write 0x0: No effect<br />

Read 0x1: Illegal command has been received.<br />

Write 0x1: Clear ILLEGALCMD bit field.<br />

7:4 RESERVED Write 0s for future compatibility. RW 0x0<br />

Read returns 0s.<br />

3 ERRORSECOVERLAP Protection region overlapping error RW 0x0<br />

Read 0x0: No overlap violation detected<br />

Write 0x0: No effect<br />

Read 0x1: A protection region overlap violation has been detected.<br />

Write 0x1: Clear ERRORSECOVERLAP bit field.<br />

2 RESERVED Reserved for non-GP devices. RW 0x0<br />

1 RESERVED Reserved for non-GP devices. RW 0x0<br />

0 ERRORVALID Error validity status - Must be explicitly cleared with a write RW 0x0<br />

transaction<br />

SDRAM Controller (SDRC) <strong>Subsystem</strong><br />

• Violation Reporting: [0]<br />

• Error Logging: [1] [2]<br />

• SMS Register Summary: [3]<br />

Read 0x0: No effect<br />

Write 0x0: All error fields no longer valid<br />

Read 0x1: Error detected and logged in the other error fields<br />

Write 0x1: Clear ERRORVALID bit field<br />

Table <strong>10</strong>-142. Register Call Summary for Register SMS_ERR_TYPE<br />

SPRUGN4L–May 20<strong>10</strong>–Revised June 2011 <strong>Memory</strong> <strong>Subsystem</strong><br />

Copyright © 20<strong>10</strong>–2011, Texas Instruments Incorporated<br />

2293

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!