MPC561MZP56 Freescale, MPC561MZP56 Datasheet - Page 685

• Manufacturer Part Number: MPC561MZP56
• Manufacturer: Freescale

Specifications of MPC561MZP56

• Cpu Family: MPC56x
• Device Core: PowerPC
• Device Core Size: 32b
• Frequency (max): 56MHz
• Interface Type: QSPI/SCI/SPI/UART
• Total Internal Ram Size: 32KB
• # I/os (max): 56
• Number Of Timers - General Purpose: 22
• Operating Supply Voltage (typ): 2.6/5V
• Operating Supply Voltage (max): 2.7/5.25V
• Operating Supply Voltage (min): 2.5/4.75V
• On-chip Adc: 2(32-chx10-bit)
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 125C
• Operating Temperature Classification: Automotive
• Mounting: Surface Mount
• Pin Count: 388
• Package Type: BGA
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• Lead Free Status / RoHS Status: Not Compliant

15.8.6
Figure 15-36
QTPNT and QPEND. The italic type indicates the action just performed by hardware. Regular type
indicates the actions that should be performed by software before the next event.
Freescale Semiconductor
1
QTSZ=0000 (1 Data Frame)
QTPNT
QTPNT
3
0000
0111
1000
1111
0000
0001
0111
1000
1111
Transmit Queue Enabled
QTSZ=1111 (16 Data Frames)
QBHE Interrupt Received
(Wrap Occurred)
Load QPEND with QTSZ (0)
Clear QTWE
Reset QTPNT
Example QSCI1 Transmit for 17 Data Bytes
below shows a transmission of 17 data frames. The bold type indicates the current value for
SCTQ15
SCTQ0
SCTQ0
SCTQ7
SCTQ8
SCTQ15
SCTQ7
SCTQ8
Figure 15-36. Queue Transmit Example for 17 Data Bytes
QPEND
1000
1111
0111
0000
QPEND
0000
1111
MPC561/MPC563 Reference Manual, Rev. 1.2
QTPNT
2
0000
0111
1000
1111
QTSZ=1111 (16 Data Frames)
QTHE Interrupt Received
Data to be transferred
Available register space
QTSZ=0 (16+1=17),Set QTWE, Clear QTHE
Write New QTSZ for When Wrap Occurs
Write SCTQ0 for 17th Transfer
SCTQ0
SCTQ8
SCTQ15
SCTQ7
QPEND
1111
1000
0111
0000
Queued Serial Multi-Channel Module
15-67