EP80579 Datasheet, PDF (1716/1916 Pages) Intel Corporation – Intel® EP80579 Integrated Processor Product Line

Intel^® EP80579 Integrated Processor
The operation of these instructions is summarized as follows:
• SAMPLE/PRELOAD: This is the Boundary scan command. The IA-32 core
operates normally. IA-32 core pins are sampled into the boundary scan register on
CaptureDr, shifted out on ShiftDr.
• EXTEST: Same as SAMPLE, except the IA-32 core outputs are driven directly from
the boundary scan register (so that the external pins wiggle as you shift the results
out).
• CLAMP: The IA-32 core outputs are driven directly from the previously-loaded
value in the boundary scan register; the 1-bit TAP bypass register is connected
between TDI and TDO.
• HIGHZ: All outputs of the IA-32 core are driven to their high-impedance state.
• IDCODE: The IA-32 core operates normally; the Device ID register is read using
this TAP instruction. The IDCODE returned contains the fields described in
Table 44-2.
• BYPASS: The IA-32 core operates normally; TAP pins TDI and TDO access the 1-
bit bypass register.
Table 44-2. Device ID Register Bit-fields
Field Name
Version Number
Part Number
Manufacturer
Identity
Bit
Position(s)
31-28
27-12
11-1
Value
xxxx
(0000 for A-0)
1011001101100000
(Request Number 101100)
(Product 11011)
(End User/Market 00000)
00000001001
Function
What version of IA-32 core this unit is.
Should increment with each stepping
Number chosen by Intel to describe
what part this is.
Identity code that uniquely identifies
Intel.
Device ID register
implemented
0
1
Must always be a 1 if the Device ID
register exists.
44.1.1.1
Description
Full details of the operation of these public instructions can be found in the 1149.1
standard. Please note that the op-codes for the public instructions are an Intel standard
and do not vary from processor to processor.
The contents of the Device ID register are shown in Table 44-2. Note that the Version
Number changes for each stepping. The rest of the fields do not change during the life
of the product. IA-32 core IDCODE value is xB360013h, where x represent the stepping
number (x=0000 for A-0).
Intel^® EP80579 Integrated Processor Product Line Datasheet
1716
August 2009
Order Number: 320066-003US