AMD-K6 Datasheet, PDF (318/346 Pages) Advanced Micro Devices – AMD-K6 Processor

AMD-K6^® Processor Data Sheet
Preliminary Information
20695H/0—March 1998
TAP Registers
IEEE Standard Test Access Port and Boundary-Scan Architecture
(IEEE 1149.1-1990) specification.
Device Identification Register (DIR). The DIR is a 32-bit Test Data
Register selected during the execution of the IDCODE
instruction. The fields of the DIR and their values are shown in
Table 66 and are defined as follows:
s Version Code—This 4-bit field is incremented by AMD
manufacturing for each major revision of silicon.
s Part Number—This 16-bit field identifies the specific
processor model.
s Manufacturer—This 11-bit field identifies the manufacturer
of the component (AMD).
s LSB—The least significant bit (LSB) of the DIR is always set
to 1, as specified by the IEEE 1149.1 standard.
Table 66. Device Identification Register
Version Code
(Bits 31–28)
Xh
Part Number
(Bits 27–12)
0570h
Manufacturer
(Bits 11–1)
00000000001b
LSB
(Bit 0)
1b
300
Test and Debug
Chapter 32