AMD-K6 AMD [Advanced Micro Devices], AMD-K6 Datasheet - Page 318

• Manufacturer Part Number: AMD-K6
• Description: AMD-K6 Processor
• Manufacturer: AMD [Advanced Micro Devices]

AMD-K6
TAP Registers
300
®
Processor Data Sheet
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:
Table 66. Device Identification Register
Version Code
Version Code—This 4-bit field is incremented by AMD
manufacturing for each major revision of silicon.
Part Number—This 16-bit field identifies the specific
processor model.
Manufacturer—This 11-bit field identifies the manufacturer
of the component (AMD).
LSB—The least significant bit (LSB) of the DIR is always set
to 1, as specified by the IEEE 1149.1 standard.
(Bits 31–28)
Xh
Preliminary Information
Test and Debug
Part Number
(Bits 27–12)
0570h
00000000001b
Manufacturer
(Bits 11–1)
20695H/0—March 1998
(Bit 0)
LSB
1b
Chapter 32