Toshiba TXZ Family, Справочное руководство

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TXZ Family
Comparator
2017-10-11
8 / 14
Rev. 1.0
1. Outline
A comparator (COMP) compares analog input voltage (AINA00 or AINA01) with reference voltage, and
outputs the result to EMG input on Advanced Programmable Control Circuit(A-PMD).
Table 1.1
Comparator Functions
Function
classification
Function A Functional Description or the range
comparison
Selection of compare
voltage
Select AINA00 or AINA01
Reference voltage Use output of built-in DAC channel 0
2. Configuration
A comparator compares voltage input (VINC) from AINA00 or AINA01 with reference voltage (VREFC:
channel 0 of built-in 8-bit digital to analog converter(DAC) output). A comparative result (COMP output) is
outputted to the EMG input of A-PMD.
A-PMD
ADC
Sel
ec
tor
DAC0
[CMPCR]
DAC
channel 0
AINA00
AINA01
COMP output
EMG
[DA0CR]
[DA0REG]
LPF
R=35k
Ω
C=1pF
EMG
VINC
VREFC
Figure 2.1 Configuration of Comparator and Outside circuits
Table 2.1 Signal List
No Symbol Signal name I/O Related reference manual
1 AINA00 Analog input pin 00 Input
Product Information,
12-bit Analog to Digital Converter
2 AINA01 Analog input pin 01 Input
Product Information,
12-bit Analog to Digital Converter
3 DAC0 DAC0 output Output Product Information,
8-bit Digital to Analog Converter