TC1796
Peripheral Units (Vol. 2 of 2)
Analog-to-Digital Converter (ADC)
User’s Manual 25-56 V2.0, 2007-07
ADC, V2.0
Figure 25-28 shows the Synchronized Injection Mode with cancel-sync-repeat
functionality. Currently performed conversions in the slave will always be cancelled,
independent of their source arbitration levels. Note that a currently running synchronized
conversion cannot be cancelled by any other source, not even by a new request for
synchronized conversion. Thus, a request for a synchronized conversion will be delayed
until the currently running synchronized conversion is finished.
In this example, channel 5 is the arbitration winner. Its CHCON5.SYM bit field is
configured for Synchronized Injection with cancel-sync-repeat functionality
(CHCON5.SYM = 10
B
). Thus, a synchronized request is transferred to the slave and the
currently performed conversion is immediately cancelled.
Figure 25-28 Synchronized Conversions with Cancel-Sync-Repeat Functionality
MCT06031
CHNR=8CHNR=3CHNR=5
CHNR=8CHNR=3CHNR=5
Cancel Cancel
A/D Converter
Master ADC
A/D Converter
Slave ADC
Arbiter
Master ADC
Arbiter
Slave ADC
Delay
Synchronized Injection
CHCON8.SYM = 10
B
Synchronized Injection
CHCON3.SYM = 10
B
Synchronized Injection
CHCON5.SYM = 10
B
Source n Source n
(repeat)
Source m Source m
(repeat)
Repeat Repeat
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