MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 535

• 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

14.9.12 Example QSCI1 Receive Operation of 17 Data Frames
MPC555
USER’S MANUAL
Figure 14-23
indicates the current value for the QRPNT. Action of the queue may be followed by
starting at the top of the figure and going left to right and then down the page.
3
QRPNT
QRPNT
1
0000
0111
1000
1111
0000
0111
1000
1111
/
QBHF Interrupt Received
MPC556
Receive Queue Enabled
Read SCRQ[8:15]
Clear QBHF
SCRQ[0]
SCRQ[7]
SCRQ[8]
SCRQ[15]
Figure 14-23 Queue Receive Example for 17 Data Bytes
SCRQ[0]
SCRQ[7]
SCRQ[8]
SCRQ[15]
shows an example receive operation of 17 data frames. The bold type
QUEUED SERIAL MULTI-CHANNEL MODULE
Rev. 15 October 2000
QRPNT
2
QRPNT
4
0000
0001
0111
1000
1111
0000
0111
1000
1111
QTHF Interrupt Received
IDLE Interrupt Received
Clear QRE/RE
Read SCRQ[0]
Read SCSR and SCRQ[0:7]
Clear QTHF
SCRQ[0]
SCRQ[7]
SCRQ[8]
SCRQ[15]
SCRQ[0]
SCRQ[7]
SCRQ[8]
SCRQ[15]
MOTOROLA
Data
Received
Available
Space
14-73