UPD78F9418AGK-9EU Renesas Electronics America, UPD78F9418AGK-9EU Datasheet - Page 171
UPD78F9418AGK-9EU
Manufacturer Part Number
UPD78F9418AGK-9EU
Description
Manufacturer
Renesas Electronics America
Datasheet
1.UPD78F9418AGK-9EU.pdf
(322 pages)
Specifications of UPD78F9418AGK-9EU
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12.4 Operation of Comparator
comparator.
INTM1
The output of 8-bit timer 02 (TM02) can be controlled and directed to the CMPTOUT0/P23/TO2 pin via the
To run the comparator, set as follows:
Table 12-1 lists the selection of INTCMP0 valid edges, and Figure 12-5 shows the timing chart of the comparator.
CMPRM0
Set P23 to output mode (PM23 = 0).
Set comparator mode register 0 (CMPRM0) as shown in Figure 12-3.
Set external interrupt mode register 1 (INTM1) as shown in Figure 12-4 and select the valid edge of INTCMP0.
ES61
0
0
1
1
ES61
0/1
Figure 12-4. Settings of External Interrupt Mode Register 1 at INTCMP0 Occurrence
Figure 12-3. Settings of Comparator Mode Register 0 for Comparator Operation
0
ES60
0/1
ES60
0
0
1
0
1
0
Table 12-1. INTCMP0 Valid Edges
0
CHAPTER 12 COMPARATOR
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
0
User’s Manual U13952EJ3V1UD
0
1
CMPON0 SELCMP0
1
INTCMP0 Valid Edge Selection
1
1
ES31
0/1
OPDR0
0/1
ES30
0/1
CMPOUT0
–
Selects the valid edge
(see Table 12-1).
Outputs TM02.
Switches on the
comparator power.
169
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