RAM 1.4 Especificações descarregar pdf (Página 7)

Device and Development Support Tool Nomenclature

SPRZ293A—November 2009 TMS320C6457 Fixed-Point Digital Signal Processor Silicon Errata 7

www.ti.com

Submit Documentation Feedback Silicon Revisions 1.0, 1.1, 1.2, 1.3, 1.4 .

The Megamodule Revision ID register (MM_REVID) is a read-only register that

identifies to the customer the revision of the C64x+ Megamodule. The value in the

VERSION field of the Megamodule Revision ID Register changes based on the version

of the C64x+ Megamodule implemented on the device. More details on the

Megamodule Revision ID register can be found in the TMS320C6457 Fixed

PointDigital Signal Processor data manual (literature number SPRS582).

The CPU Control Status Register (CSR) contains a read-only REVISION_ID field that

identifies to the customer the revision of the CPU being used. More information about

the CPU Control Status Register can be found in the TMS320C64x+ DSP CPU and

Instruction Set Reference Guide (literature number SPRU732)

Table 2 shows the contents of the CPU Control Status Register CPU_ID and

REVISION_ID fields, C64x+ Megamodule MM_REVID Register REVISION field, and

the JTAGID register VARIANT field for each silicon revision of the C6457 device.

More details on the JTAG ID and Megamodule Revision ID Registers can be found in

the TMS320C6457 Fixed Point DSP data manual (literature number SPRS582).

Table 2 Silicon Revision Variables

Silicon

Revision

CPU CSR

C64x+ Megamodule

MM_REVID Register

C6457 JTAGID

1.4 CSR[CPU_ID] = 10h

CSR[REVISION_ID] = 00h

Rev. 5.2

MM_REVID[REVISION] = 0002h

JTAGID[VARIANT] =3h

1.3 CSR[CPU_ID] = 10h

CSR[REVISION_ID] = 00h

Rev. 5.1

MM_REVID[REVISION] = 0001h

JTAGID[VARIANT] = 2h

1.2 CSR[CPU_ID] = 10h

CSR[REVISION_ID] = 00h

Rev. 5.0

MM_REVID[REVISION] = 0000h

JTAGID[VARIANT] = 1h

1.1 CSR[CPU_ID] = 10h

CSR[REVISION_ID] = 00h

Rev. 5.0

MM_REVID[REVISION] = 0000h

JTAGID[VARIANT] = 0h

1.0 CSR[CPU_ID] = 10h

CSR[REVISION_ID] = 00h

Rev. 5.0

MM_REVID[REVISION] = 0000h

JTAGID[VARIANT] = 0h

End of Table 2

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