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Enhanced Queued Analog-to-Digital Converter (eQADC)
MPC5566 Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor
19-7
If the null message transmission is aborted, the eQADC completes the abort procedure before
halting future command transfers from any CFIFO. The message of the CFIFO that caused the
abort of the previous serial transmission is only transmitted after stop mode exits.
•
Command transfer is in progress.
The eQADC completes the transfer and update CFIFO status before halting future command
transfers from any CFIFO.
Command transfers to the external device are considered completed when the serial transmission
of the command is completed. If valid data (conversion result or data read from an ADC register)
is received at the end of a serial transmission, it is not sent to an RFIFO until stop mode exits. The
CFIFO status bits are still updated after the completion of the serial transmission, therefore, after
stop mode entry request is detected, the eQADC status bits stop changing several system clock
cycles after the on-going serial transmission completes.
If the command message transmission is aborted, the eQADC completes the abort procedure before
halting future command transfers from any CFIFO. The message of the CFIFO that caused the
abort of the previous serial transmission are transmitted only after stop mode exits.
•
Command/null message transfer through serial interface was aborted but next serial transmission
did not start.
If the stop mode entry request is detected between the time a previous serial transmission was
aborted and the start of the next transmission, the eQADC completes the abort procedure before
halting future command transfers from any CFIFO. The message of the CFIFO that caused the
abort of the previous serial transmission is transferred only after stop mode is exited.
19.2
External Signal Description
These signals are external to the eQADC module, but may or may not be physical pins. Refer to
” for a complete list of all physical pins and signals.
Table 19-1. eQADC External Signals
Function
Description
I/O
Type
Status
During
Reset
1
Status
After
Reset
2
Type
Package
AN[0]_
DAN0+
Single-ended analog input 0
Positive terminal differential input
I
I / —
AN[0] / —
Analog
496
416
AN[1]_
DAN0-
Single-ended analog input 1
Negative terminal differential input
I
I / —
AN[1] / —
Analog
496
416
AN[2]_
DAN1+
Single-ended analog input 2
Positive terminal differential input
I
I / —
AN[2] / —
Analog
496
416
AN[3]_
DAN1-
Single-ended analog input 3
Negative terminal differential input
I
I / —
AN[3] / —
Analog
496
416
AN[4]_
DAN2+
Single-ended analog input 4
Positive terminal differential input
I
I / —
AN[4] / —
Analog
496
416
AN[5]_
DAN2-
Single-ended analog input 5
Negative terminal differential input
I
I / —
AN[5] / —
Analog
496
416
Summary of Contents for MPC5566
Page 81: ...Introduction MPC5566 Microcontroller Reference Manual Rev 2 1 24 Freescale Semiconductor...
Page 135: ...Signal Description MPC5566 Microcontroller Reference Manual Rev 2 2 54 Freescale Semiconductor...
Page 189: ...Reset MPC5566 Microcontroller Reference Manual Rev 2 4 20 Freescale Semiconductor...
Page 603: ...Flash Memory MPC5566 Microcontroller Reference Manual Rev 2 13 38 Freescale Semiconductor...
Page 609: ...SRAM MPC5566 Microcontroller Reference Manual Rev 2 14 6 Freescale Semiconductor...
Page 1073: ...MPC5566 Microcontroller Reference Manual Rev 2 22 36 Freescale Semiconductor...
Page 1185: ...Nexus MPC5566 Microcontroller Reference Manual Rev 2 25 92 Freescale Semiconductor...