PXR40RM Datasheet, PDF (1052/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

Enhanced Queued Analog-to-Digital Converter (EQADC)
After reset or
invalidation
Push
Next
Data
Pointer
CFIFOx
Transfer
Next
Data
Pointer
Valid Entry
Some entries pushed
but none Executed
CFIFOx
First In
Transfer
Next
Data
Pointer
No entries pushed
but some executed
CFIFOx
First In
Transfer
Next
Data
Pointer
Empty Entry
Push
Next
Data
Pointer
Last In
Push
Next
Data
Pointer
Last In
Entries pushed until
full and none executed
CFIFOx
No entries pushed
but some executed
CFIFOx
Some entries pushed
and some executed
CFIFOx
Push
Next
Data
Pointer
Last In
First In
Transfer
Next
Data
Pointer
Push
Next
Data
Pointer
Last In
First In
First In
Transfer
Next
Data
Pointer
Push
Next
Data
Pointer
Last In
Transfer
Next
Data
Pointer
Figure 27-50. CFIFO Entry Pointer Example
NOTE: x=0, 1, 2, 3, 4, 5
27.7.4.2 CFIFO0 Streaming Mode Description
CFIFO0 can be configured to operate in streaming mode to allow repetition of a group of commands
several times without the need of refilling the registers as in the normal mode of operation of CFIFOs. This
mode makes use of the additional bit in the Conversion Command Word (CCW) called ‘Repeat’ (REP bit).
27-70
PXR40 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor