MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 533

• 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

14.9.10 QSCI1 Receive Flow Chart Implementing The Queue
MPC555
USER’S MANUAL
/
MPC556
Refers to Action Performed
In Parallel
Set QRE
Set QTHFI, QBHFI
Clear QTHF, QBHF
Set RE
Clear QTHF
Set QTHF
Clear QBHF
Set QBHF
QUEUED SERIAL MULTI-CHANNEL MODULE
Figure 14-21 Queue Receive Flow
Rev. 15 October 2000
No
Yes
Yes
RE=0, QRWE=0
QRPNT=0000
QRE=0, QOR=0
QTHF=1, QBHF=1
QTHFI=0, QBHFI=0
Reset QRPNT to 0000
Increment QRPNT
QRPNT=0 & QTHF
QRPNT = 0000?
QRPNT=8 & QBHF
SCRQ[QRPNT],
Load RX Data to
QRPNT = 1000?
FE, PE = 0?
QTHF/QOR=0
QRE, RE=1?
FE/PE/OR=0
QRE/RE=1
RDRF=1?
No
Yes
Yes
No
Yes
Yes
No
Reset
No
Yes
No
No
Clear QRE
Set QOR
Hardware
Software
MOTOROLA
14-71