MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 758

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

22.5 Instruction Register
The MPC555 / MPC556 JTAG implementation includes the public instructions (EXTEST,
SAMPLE/PRELOAD, and BYPASS), and also supports the CLAMP instruction. One addi-
tional public instruction (HI-Z) provides the capability for disabling all device output driv-
ers. The MPC555 / MPC556 includes a 4-bit instruction register without parity consisting
of a shift register with four parallel outputs. Data is transferred from the shift register to the
parallel outputs during the update-IR controller state. The four bits are used to decode the
five unique instructions listed in
MPC555
USER’S MANUAL
/
MPC556
1
0
RUN-TEST/IDLE
TEST LOGIC
RESET
0
Figure 22-3 TAP Controller State Machine
IEEE 1149.1-COMPLIANT INTERFACE (JTAG)
1
Table
1
0
1
1
Rev. 15 October 2000
SELECT-DR_SCAN
CAPTURE-DR
UPDATE-DR
PAUSE-DR
SHIFT-DR
EXIT1-DR
EXIT2-DR
22-2.
1
0
0
1
0
1
1
0
0
0
1
1
0
1
SELECT-IR_SCAN
CAPTURE-IR
UPDATE-IR
PAUSE-IR
SHIFT-IR
EXIT1-IR
EXIT2-IR
0
0
1
0
1
1
0
0
0
1
1
MOTOROLA
22-4