MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 699

• 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

21.2.1.1 Instruction Queue Status Pins — VF [0:2]
MPC555
USER’S MANUAL
000
001
010
011
100
101
110
111
NOTES:
VF[0:2]
The status pins are divided into two groups and one special case listed below:
Instruction queue status pins denote the type of the last fetched instruction or how
many instructions were flushed from the instruction queue. These status pins are used
for both functions because queue flushes only happen in clocks that there is no fetch
type information to be reported.
Possible instruction types are defined in
Table 21-2
1. Unless next clock VF=111. See below.
2. The sequential instructions listed here affect the machine in a manner similar to indirect branch instructions.
Refer to
/
MPC556
None
Sequential
Branch (direct or indirect) not taken
VSYNC was asserted/negated and therefore the
next instruction will be marked with the indirect
change-of-flow attribute
Exception taken — the target will be marked with the
indirect change-of-flow attribute
Branch indirect taken, rfi, mtmsr, isync and in some
cases mtspr to CMPA-F, ICTRL, ECR, or DER —
the target will be marked with the indirect change-of-
flow attribute
Branch direct taken
Branch (direct or indirect) not taken
21.2.3 Sequential Instructions Marked as Indirect
shows VF[0:2] encodings for instruction queue flush information.
2
Table 21-1 VF Pins Instruction Encodings
Instruction Type
DEVELOPMENT SUPPORT
Rev. 15 October 2000
Table
21-1.
More instruction type information
More instruction type information
More instruction type information
More instruction type information
Queue flush information
Queue flush information
Queue flush information
Queue flush information
Branch.
VF Next Clock Will Hold
1
1
1
1
MOTOROLA
21-3