Enhanced Queued Analog-to-Digital Converter (eQADC)
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
18-63
Figure 18-36. CFIFO Entry Pointer Example
18.4.3.2
CFIFO Prioritization and Command Transfer
The CFIFO priority is fixed according to the CFIFO number. A CFIFO with a smaller number has a higher
priority. When commands of distinct CFIFOs are bound for the same destination (the same on-chip ADC),
the higher priority CFIFO is always served first. A triggered, not-underflowing CFIFO starts to transfer
commands when the following occur:
•
Its commands are bound for an internal command buffer that is not full, and it is the highest priority
triggered CFIFO sending commands to that buffer.
First In
Transfer
Next
Data
Pointer
Last In
Push
Next
Data
Pointer
CFIFO
n
Transfer
Next
Data
Pointer
Push
Next
Data
Pointer
CFIFO
n
First In
Transfer
Next
Data
Pointer
Last In
Push
Next
Data
Pointer
CFIFO
n
After Reset or
Invalidation
Some Entries Pushed
but None Executed
No Entries Pushed
but Some Executed
First In
Transfer
Next
Data
Pointer
Push
Next
Data
Pointer
CFIFO
n
Transfer
Next
Data
Pointer
Push
Next
Data
Pointer
CFIFO
n
First In
Transfer
Next
Data
Pointer
Last In
Push
Next
Data
Pointer
CFIFO
n
No Entries Pushed
but Some Executed
Some Entries Pushed
and Some Executed
Entries Pushed Until
Full and None Executed
First In
Last In
Last In
Valid Entry
Empty Entry
NOTE:
n
= 0, 1, 2, 3, 4, 5
Summary of Contents for MPC5565
Page 18: ...MPC5565 Microcontroller Reference Manual Devices Supported MPC5565 MPC5565 RM Rev 1 0 09 2007...
Page 34: ...MPC5565 Reference Manual Rev 1 0 Freescale Semiconductor 15...
Page 35: ...MPC5565 Reference Manual Rev 1 0 16 Freescale Semiconductor...
Page 553: ...Flash Memory MPC5565 Microcontroller Reference Manual Rev 1 0 13 38 Freescale Semiconductor...
Page 559: ...SRAM MPC5565 Microcontroller Reference Manual Rev 1 0 14 6 Freescale Semiconductor...
Page 973: ...Preface MPC5565 Microcontroller Reference Manual Rev 1 0 21 36 Freescale Semiconductor...
Page 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...