saa7130hl-v1 NXP Semiconductors, saa7130hl-v1 Datasheet - Page 39

• Manufacturer Part Number: saa7130hl-v1
• Description: Pci Video Broadcast Decoder
• Manufacturer: NXP Semiconductors

Philips Semiconductors
SAA7130HL_4
Product data sheet
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
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 determination of the version number of ICs
during field service.
Table 21:
Instruction
BYPASS
EXTEST
SAMPLE
CLAMP
IDCODE
Fig 17. 32-bit identification code
TDI
BST instructions supported by the SAA7130HL
Description
This mandatory instruction provides a minimum length serial path (1 bit) between
pins TDI and TDO when no test operation of the component is required.
This mandatory instruction allows testing of off-chip circuitry and board level
interconnections.
This mandatory instruction can be used to take a sample of the inputs during
normal operation of the component. It can also be used to preload data values into
the latched outputs of the boundary scan register.
This optional instruction is useful for testing when not all ICs have BST. This
instruction addresses the bypass register while the boundary scan register is in
external test mode.
This optional instruction will provide information on the components manufacturer,
part number and version number.
31
MSB
version
0001
code
4-bit
28 27
Rev. 04 — 11 April 2006
0111 0001 0011 0000
16-bit part number
Figure
17.
12 11
11-bit manufacturer
000 0001 0101
identification
PCI video broadcast decoder
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
SAA7130HL
mandatory
1
LSB
1
0
mhc175
TDO
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