SAF7115ET NXP [NXP Semiconductors], SAF7115ET Datasheet - Page 22

• Manufacturer Part Number: SAF7115ET
• Description: Multistandard video decoder with super-adaptive comb filter,
• Manufacturer: NXP [NXP Semiconductors]

NXP Semiconductors
SAF7115_1
Product data sheet
11.2.2 Device identification codes
A device identification register is specified in IEEE Std. 1149.1b-1994 . It is a 32-bit
register which contains fields for the specification of the IC manufacturer, the IC part
number and the IC version number. Its biggest advantage is the possibility to check for the
correct ICs mounted after production and the determination of the version number of ICs
during field service.
When the IDCODE instruction is loaded into the BST instruction register, the identification
register will be connected between TDI and TDO of the IC. The identification register will
load a component specific code during the CAPTURE_DATA_REGISTER state of the TAP
controller and this code can be subsequently shifted out. This code can be used at board
level to verify component manufacturer, type and version number. The device identification
register contains 32 bits, numbered 31 to 0, where bit 31 is the most significant bit
(nearest to TDI) and bit 0 is the least significant bit (nearest to TDO); see
Fig 6.
32 bits of identification code
TDI
Rev. 01 — 15 October 2008
MSB
31
version
nnnn 0111 0001 0001 0101
code
4-bit
28
27
16-bit part number
12
11
11-bit manufacturer
00000010101
identification
Multistandard video decoder
1
LSB
1
0
001aag284
TDO
SAF7115
© NXP B.V. 2008. All rights reserved.
Figure
6.
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