ISD91200 Series Technical Reference Manual
Release Date: Sep 16, 2019
- 433 -
Revision 2.4
7.6.5
Comparator
The ISD91200 contains two analog comparators are contained within the devices. These functions offer
flexibility via their register controlled features such as power-down, interrupt etc. Sharing their pins with
normal I/O pins, the comparators do not waste precious I/O pins if there functions are otherwise unused.
OPA0
CMP1
OPA1
CNP
C2P
C1N
CMP2
A0O2CIN
A1O2CIN
CNPSEL
C2PSEL
C1PSEL
V
H0
V
L0
C1INTEN
C2INTEN
SW1
SW2
SW3
S7C
S10D
CINT0
CMPES
CMPINT
INT select
CINT0
C2OUTEN
C1OUTEN
C1OUT
C2OUT
Figure 7-19 Comparator Switch Control
7.6.6
Register Map
R:
read only,
W:
write only,
R/W:
both read and write
Register
Offset
R/W
Description
Reset Value
CSCAN Base Address:
CSCAN_BA = 0x400D_0000
CSCAN_CTRL
C0x00
R/W
CSCAN Control Register
0x8000_0000
CSCAN_CYCCNT
CS0x04
R/W
CSCAN Cycle Count Control Register
0x0000_0000
CSCAN_COUNT
CS0x08
R/W
CSCAN Count Status Register
0x0000_0000
CSCAN_INT
CS0x0C
R/W
CSCAN Interrupt Register
0x0000_0000
CSCAN_AGPIO
C0x10
R/W
CSCAN Analog GPIO function Register
0x0000_0000
CSCAN_OPACTL
C0x14
R/W
Operational Amplifier Control Register
0x0000_0000
CSCAN_CMPCTL
C0x18
R/W
Comparator Control Register
0x0000_0000