Enhanced Queued Analog-to-Digital Converter (eQADC)
MPC5510 Microcontroller Family Reference Manual, Rev. 1
Freescale Semiconductor
31-33
Preliminary
Figure 31-20. Command Flow During eQADC Operation
Figure 31-21. Result Flow During eQADC Operation
31.4.1.1
Message Format in eQADC
This section explains the command and result message formats used for on-chip ADC operation
Command
Queue
System
Memory
CFIFO
n
ADC
Priority
Command
Buffer
(32-bits)
(32-bits)
FIFO
Control
Unit
To
ADCs
eQADC
DMA
Transaction
Done Signals
Host CPU
or
DMAC
eDMA
or Interrupt
Requests
NOTES:
n
= 0, 1, 2, 3, 4, 5
ADC Command
CFIFO Header
Command
Message
Result
Queue
System
Memory
RFIFO
n
ADC
Decoder
(16-bits)
(16-bits)
FIFO
Control
Unit
eQADC
DMA
Transaction
Done Signals
Host CPU
or
DMAC
DMA
or Interrupt
Requests
NOTES:
n
= 0, 1, 2, 3, 4, 5
ADC Result
RFIFO Header
Result
Message
Result
Format
&
Calibration
Submodule