C-3E Datasheet, PDF (69/114 Pages) Freescale Semiconductor, Inc – C-3e NETWORK PROCESSOR SILICON REVISION A1

JTAG Support
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IDcode Register The C-3e NP implements a standard 32bit JTAG identification register. Table 30 lists the
value of the code for full identification and its sub-components.
Table 30 JTAG Identification Code and Its Sub-components
FIELD NAME
Version
Part Number
Manufacturer Identity
LSB
WIDTH
4
16
11
1
BIT POSITIONS
31-28
27-12
11-1
0
BINARY VALUE
0000
0000_0000_0010_0001
001_1001_0110
1
The concatenated 32bit value is hexidecimal 0002132d.
JTAG Instruction Register The C-3e NP contains a 4bit instruction register. Table 31 lists the instructions that are
supported.
Table 31 Instruction Register Instructions
INSTRUCTION MNEMONIC SELECTED REGISTER
Extest
Boundary Scan
Idcode
Identification Register
Sample/Preload
Boundary Scan
Highz
Bypass Register
Clamp
Bypass Register
Bypass
Bypass Register
Reserved*
Bypass Register
Reserved*
Bypass Register
Bypass
Bypass Register
Bypass
Bypass Register
Bypass
Bypass Register
Bypass
Bypass Register
Bypass
Bypass Register
Bypass
Bypass Register
INSTRUCTION OPCODE
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
03