C5ENPB0-DS Datasheet, PDF (73/118 Pages) Freescale Semiconductor, Inc – C-5e Network Processor Silicon Revision B0

JTAG Support
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IDcode Register The C-5e NP implements a standard 32bit JTAG identification register. Table 34 lists the
value of the code for full identification and its subcomponents.
Table 34 JTAG Identification Code and Its Subcomponents
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_0010
001_1001_0110
1
The concatenated 32bit value is hexidecimal 0002232d.
JTAG Instruction Register The C-5e NP contains a 4bit instruction register. Table 35 lists the instructions that are
supported.
Table 35 Instruction Register Instructions
INSTRUCTION MNEMONIC SELECTED REGISTER INSTRUCTION OPCODE
Extest
Boundary Scan
0000
Idcode
Identification Register 0001
Sample/Preload
Boundary Scan
0010
Highz
Bypass Register
0011
Clamp
Bypass Register
0100
Bypass
Bypass Register
0101
Reserved*
Bypass Register
0110
Reserved*
Bypass Register
0111
Bypass
Bypass Register
1000
Bypass
Bypass Register
1001
Bypass
Bypass Register
1010
Bypass
Bypass Register
1011
Bypass
Bypass Register
1100
Bypass
Bypass Register
1101
FREESCALE SEMICONDUCTOR
C5ENPB0-DS REV 08