Rainbow Electronics W90N745CDG - Manual (Page 47)

W90N745CD/W90N745CDG
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Product Identifier Register （PDID）
This register is read only and lets software can use it to recognize certain characteristics of the chip ID
and the version number.
REGISTER ADDRESS R/W DESCRIPTION RESET VALUE
PDID 0xFFF0_0000 R Product Identifier Register 0xX090_0745
31 30 29 28 27 26 25 24
PACKAGE VERSION
23 22 21 20 19 18 17 16
CHPID
15 14 13 12 11 10 9 8
CHPID
7 6 5 4 3 2 1 0
CHPID
BITS DESCRIPTION
[31:30] PACKAGE
Package Type Select
These two bits are power-on setting latched from pin D[9:8]
Package [31:30] Package Type
0 1 128-pin Package
[29:24] VERSION Version of chip
[23:0] CHIPID The chip identifier of W90N745 is 0x090.0745