CHAPTER 11 A/D CONVERTER
User’s Manual U12688EJ4V0UM00
346
11.8.5 Timer 1 functions when in external trigger mode
The external trigger input becomes an A/D conversion start trigger. At this time, the external trigger input also
functions as a timer 15 (TM15) capture trigger external interrupt. In order to prevent it from generating capture trigger
external interrupts, set TM15 as a compare register and disable interrupts by the interrupt mask bit of the interrupt
control register.
The operation if TM15 is not set as a compare register and interrupts are not disabled by the interrupt control
register is as follows.
(a) If the TUM15 register’s interrupt mask bit (IMS153) is 0
It also functions to generate compare register match interrupts to the CPU.
(b) If the TUM15 register’s interrupt mask bit (IMS153) is 1
The A/D converter’s external trigger input also functions as an external interrupt to the CPU.
Figure 11-18. Relationship of A/D Converter and Port, INTC and RPU
P127/INTP153/
ADTRG
PMC127
(PMC12)
CMS153
(TUM15)
CMS11n
(TUM11)
IMS153
(TUM15)
ES1n1, ES1n0
(INTM2)
ES531, ES530
(INTM6)
IMS11n
(TUM11)
TRG0 to TRG2
(ADM1)
P15MK3
(P15IC3)
P11MKn
(P11ICn)
A/D converter
Timer interrupt
request
Timer interrupt
request
Timer
trigger
External trigger
A/D conversion
trigger
TM15
TM11
External interrupt request
Noise
elimination
Edge
selection
Interrupt
enable/disable
Interrupt
enable/disable
Interrupt
control
Compare
Capture
trigger
Capture
trigger
Capture
External interrupt request
Compare
Capture
Noise
elimination
Edge
selection
PCS1m
(PCS1)
PMC1m
(PMC1)
P1m/INTP11n/
DMAAKn
Selector
Selector
Selector
Port
RPU
INTC
Remarks 1. m = 4 to 7, n = 0 to 3
2. Items in parentheses ( ) show the register names.
Содержание V850E/MS1 UPD703100
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