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Enhanced Queued Analog-to-Digital Converter (eQADC)
MPC5566 Microcontroller Reference Manual, Rev. 2
19-80
Freescale Semiconductor
Figure 19-43. Non-Coherency Event When Different CFIFOs Use the Same Buffer
CFIFO5
CF5_ADC1_CM3
3
CF5_ADC1_CM2
2
CF5_ADC1_CM1
1
CF5_ADC1_CM0
0
TNXTPTR*
ADC1**
Empty
1
Empty
0
CFIFO0 and CFIFO5 both have
** ADC command buffer can hold 2 entries.
CFIFO0
CF0_ADC1_CM3
3
CF0_ADC1_CM2
2
CF0_ADC1_CM1
1
CF0_ADC1_CM0
0
TNXTPTR*
commands to be sent to ADC1, and both
are not triggered.
(a)
CFIFO5
CF5_ADC1_CM3
3
CF5_ADC1_CM2
2
Sent
1
Sent
0
TNXTPTR*
ADC1
CF5_ADC1_CM1
1
CF5_ADC1_CM0
0
CFIFO5 becomes triggered and transfers
CFIFO0
CF0_ADC1_CM3
3
CF0_ADC1_CM2
2
CF0_ADC1_CM1
1
CF0_ADC1_CM0
0
TNXTPTR*
two commands to ADC1.
(b)
CFIFO5
CF5_ADC1_CM3
3
CF5_ADC1_CM2
2
Sent
1
Sent
0
TNXTPTR*
ADC1
CF0_ADC1_CM0
1
CF5_ADC1_CM1
0
CFIFO0 becomes triggered and transfers
CFIFO0
CF0_ADC1_CM3
3
CF0_ADC1_CM2
2
CF0_ADC1_CM1
1
Sent
0
TNXTPTR*
a command to ADC1. The sequence sent
through CFIFO5 becomes non-coherent.
(c)
TNXTPTR – Transfer Next Data Pointer.
CF
x
_ADCa_CM
n
– Command
n
in CFIFO
x
bound for ADCa.
*
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...