MC33665 System Version

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MC33665 System Version

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Chenxu1
Contributor II

Hi,NXP专家:
我想问一下,为什么手册中两处关于SYS_VERSION的寄存器描述不一致?而我读取MC33665ATS4AE该寄存器读到的值是111?

Chenxu1_0-1760512180299.png

Chenxu1_1-1760512189270.png

 

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TomasVaverka
NXP TechSupport
NXP TechSupport

Hi,

The apparent inconsistency comes from two different contexts in the datasheet:
Section 5.1.4 explains the purpose of SYS_VERSION and gives an example of actual silicon revision values (e.g. A1).
Section 8.1.14 shows the register map with the reset value (0x0100), which is a default placeholder, not the actual silicon revision.

The value you read (0x0111) means:
TYPE = 0x01 (MC33665 device)
FREV = 0x01 (full mask revision)
MREV = 0x01 (metal revision)

This is correct for your silicon revision and matches the A1 state described in the datasheet.

BRs, Tomas

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