MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 526

• 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

14.9.5 QSCI1 Transmit Flow Chart Implementing the Queue
MPC555
USER’S MANUAL
/
MPC556
Refers to Action Performed
in Parallel
Set QTE=1
Set QTHEI, QBHEI
Write QTSZ=n
Clear QTHE, TC
Write SCTQ[0:n]
Set TE
Clear QTWE
Clear QBHE
Set QBHE
QUEUED SERIAL MULTI-CHANNEL MODULE
Figure 14-16 Queue Transmit Flow
QTE=0, QTPNT=0, QTWE=0
Rev. 15 October 2000
Yes
No
Yes
TE=0, TC=1, TDRE=1
QBHEI=0, QBHE=1
QTHEI=0, QTHE=1
Load QPEND with QTSZ,
Shift Data Out
Reset QTPNT to 0000
With SCTQ[QTPNT]
Load TDR (SC1DR)
TDRE=1, QTHE=0?
Decrement QPEND,
Increment QTPNT
QPEND = 1111
Set QTHE, QBHE
QTPNT = 1111?
QTE=1, TE=1
Yes
QTPNT=1000?
& QTHE = 0?
QTE, TE=1?
Clear QTE
QTWE = 1
Yes
No
no
yes
(TDRE=1)
no
Reset
Yes
Yes
No
No
Write QTSZ for Wrap
Clear QTHE
Possible Set of QTWE
Set QTHE
QBHE=0?
No
Hardware
Software
MOTOROLA
14-64