Rohm LAPIS SEMICONDUCTOR ML620Q503, User Manual

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ML620Q503/Q504 User’s Manual
Chapter 26 Analog Comparator
FEUL620Q504 26–4
26.2.3 Comparator n mode Registers (CMPnMOD : n=0,1)
Address: 0F922H(CMP0MODL/CMP0MOD), 0F923H(CMP0MODH),
0F92AH(CMP1MODL/CMP1MOD), 0F92BH(CMP1MODH)
Access: R/W
Access size: 8/16 bits
Initial value: 0000H
7 6 5 4 3 2 1 0
CMPnMODL – – CMPnMD1 CMPnMD0 – – CMPnE1 CMPnE0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
15 14 13 12 11 10 9 8
CMPnMODH – – – CMPnCK – – CMPnSM1 CMPnSM0
R/W R/W R/W R/W R/W R/W R/W R/W R/W
Initial value 0 0 0 0 0 0 0 0
CMPnMOD is special function registers (SFRs) to set the function mode of Comparator n.
CMPnMOD needs to be set during CMPnEN is “0”.
Description of Bits
•
CMPnE1-0 (bits 1 to 0)
The CMPnE1-0 are used to set comparator judge interrupt generation condition. Each function mode has different
interrupt generation sources.
CMPnMD CMPnE1 CMPnE0 Description
Single mode 0 * Generate interrupt when CMPnD is ”0”
1 * Generate interrupt when CMPnD is ”1”
Single monitor mode * * Setting is invalid (Generate interrupt once measurement is
completed)
Supervisor mode 0 0 No interrupt
（
initial value
）
0 1 L interrupt : Generate interrupt when CMPnD is ”0”
CMPnD is ”0” when starting measurement or
CMPnD is changed from “1” to ”0” during measurement.
1 0 H interrupt : Generate interrupt when CMPnD is ”1”
CMPnD is ”1” when starting measurement or
CMPnD is changed from “0” to ”1” during measurement.
1 1 Both edge(L and H) interrupt
CMPnD is ”1” when starting measurement or
CMPnD is changed from “0” to ”1” or “1” to ”0” during
measurement.
[Note]
This setting affects CMPnTGO signal. Refer to 26.3.2 for details. Use the CMPnTGO signal in
Supervisor mode
.