Enhanced Queued Analog-to-Digital Converter (eQADC)
MPC5565 Microcontroller Reference Manual, Rev. 1.0
Freescale Semiconductor
18-73
18.4.3.6
CFIFO and Trigger Status
18.4.3.6.1
CFIFO Operation Status
Each CFIFO has its own CFIFO status field. CFIFO status (CFS) can be read from EQADC_CFSSR (refer
to
Section 18.3.2.11, “eQADC CFIFO Status Register (EQADC_CFSR)
indicate the CFIFO status switching condition. Refer to
for the meaning of each CFIFO
operation status. The last CFIFO to transfer a command to an on-chip ADC can be read from the LCFT
n
(
n
Section 18.3.2.10, “eQADC CFIFO Status Snapshot Registers 0–2
.” The last CFIFO to transfer a command to a specific external command buffer can
be identified by reading the EQADC_CFSSR
n
[LCFTSSI] and EQADC_CFSSR
n
[ENI] fields (see
Section 18.3.2.10, “eQADC CFIFO Status Snapshot Registers 0–2 (EQADC_CFSSRn)
.”
Continuous
Scan Edge
No
A corresponding edge
occurs.
Yes
Yes
None.
Continuous
Scan Level
No
Gate is opened.
No
No
The eQADC also stops transfers
from the CFIFO when CFIFO
status changes from triggered
due to the detection of a closed
gate.
1
Refer to
Section 18.4.3.6.2, “Command Queue Completion Status
for more information on EOQ.
2
Refer to
Section 18.4.3.6.3, “Pause Status
,” for more information on pause.
3
The eQADC always stops command transfers from a CFIFO when the CFIFO operation mode is disabled.
4
The eQADC always stops command transfers from a CFIFO when a higher priority CFIFO is triggered. Refer to
Section 18.4.3.2, “CFIFO Prioritization and Command Transfer
,” for information on CFIFO priority.
5
If a closed gate is detected while no command transfers are taking place, it has an immediate effect on the CFIFO
status. If a closed gate is detected during the serial transmission of a command to the external device, it has no effect
on the CFIFO status until the transmission completes.
Table 18-44. CFIFO Scan Trigger Mode—Command Transfer Start/Stop Summary
Trigger Mode
Requires
Asserted SSS
to Recognize
Trigger
Events?
Command Transfer
Start/Restart Condition
Stop on
asserted
EOQ
bit
1
?
Stop on
asserted
Pause
bit
2
?
Other Command Transfer Stop
Condition
3
4
Содержание MPC5565
Страница 18: ...MPC5565 Microcontroller Reference Manual Devices Supported MPC5565 MPC5565 RM Rev 1 0 09 2007...
Страница 34: ...MPC5565 Reference Manual Rev 1 0 Freescale Semiconductor 15...
Страница 35: ...MPC5565 Reference Manual Rev 1 0 16 Freescale Semiconductor...
Страница 325: ...Error Correction Status Module ECSM MPC5565 Microcontroller Reference Manual Rev 1 0 8 16 Freescale Semiconductor...
Страница 515: ...External Bus Interface EBI MPC5565 Microcontroller Reference Manual Rev 1 0 12 70 Freescale Semiconductor...
Страница 553: ...Flash Memory MPC5565 Microcontroller Reference Manual Rev 1 0 13 38 Freescale Semiconductor...
Страница 559: ...SRAM MPC5565 Microcontroller Reference Manual Rev 1 0 14 6 Freescale Semiconductor...
Страница 577: ...Boot Assist Module BAM MPC5565 Microcontroller Reference Manual Rev 1 0 15 18 Freescale Semiconductor...
Страница 895: ...Deserial Serial Peripheral Interface DSPI MPC5565 Microcontroller Reference Manual Rev 1 0 19 72 Freescale Semiconductor...
Страница 973: ...Preface MPC5565 Microcontroller Reference Manual Rev 1 0 21 36 Freescale Semiconductor...
Страница 1145: ...MPC5565 Register Map MPC5565 Microcontroller Reference Manual Rev 1 0 A 60 Freescale Semiconductor...
Страница 1153: ...Calibration MPC5565 Microcontroller Reference Manual Rev 1 0 B 8 Freescale Semiconductor...