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TMS320C6678ACYP4 其他数据使用手册 - TI（德州仪器）
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TI（德州仪器）
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DSP数字信号处理器
封装:
FCBGA-841
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8 核定点和浮点数字信号处理器 841-FCBGA 0 to 85
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TMS320C6678ACYP4数据手册
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LotTraceCode
DSP
TMS320C6678CYP
#xx−#######
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Package Symbolization and Revision Identification
3 Package Symbolization and Revision Identification
The device revision can be determined by the lot trace code marked on the top of the package. The
location of the lot trace code for the CYP package is shown in Figure 1. Figure 1 also shows an example
of C6678 package symbolization.
Figure 1. Lot Trace Code Example for TMS320C6678 (CYP Package)
Silicon revision correlates to the lot trace code marked on the package. This code is of the format #xx-
#######. If xx is 10, then the silicon is revision 1.0. Table 1 lists the silicon revisions associated with each
lot trace code for the TMS320C6678 devices.
Table 1. Lot Trace Codes
Lot Trace Code (xx) Silicon Revision Comments
10 1.0 Initial silicon revision
20 2.0 Silicon revision 2.0
The TMS320C6678 device contains multiple read-only register fields that report revision values. The
JTAG ID (JTAGID), C66x CorePac Revision ID (MM_REVID) and CPU Control Status (CSR) registers
allow the customer to read the current device and CPU level revision of the TMS320C6678.
The JTAG ID register (JTAGID) is a read-only register that identifies to the customer the JTAG/Device ID.
The value in the VARIANT field of the JTAG ID Register changes based on the revision of the silicon
being used.
The C66x CorePac Revision ID register (MM_REVID) is a read-only register that identifies to the customer
the revision of the C66x CorePac. The value in the VERSION field of the C66x CorePac Revision ID
Register changes based on the version of the C66x CorePac implemented on the device. More details on
the C66x CorePac Revision ID register can be found in the TMS320C6678 Multicore Fixed and Floating-
Point Digital Signal Processor Data Manual (SPRS691).
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 C66x CPU and Instruction Set Reference Guide (SPRUGH7).
Table 2 shows the contents of the CPU Control Status Register CPU_ID and REVISION_ID fields, C66x
CorePac MM_REVID Register REVISION field, and the JTAGID register VARIANT field for each silicon
revision of the C6678 device.
5
SPRZ334H–January 2011–Revised June 2015 TMS320C6678 Multicore Fixed and Floating-Point Digital Signal Processor
Silicon Revision 1.0, 2.0
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