mc9s08jm16 Freescale Semiconductor, Inc, mc9s08jm16 Datasheet - Page 130
mc9s08jm16
Manufacturer Part Number
mc9s08jm16
Description
S08jm 8-bit Usb Microcontroller
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S08JM16.pdf
(386 pages)
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Analog Comparator (S08ACMPV2)
9.2
The ACMP has two analog input pins, ACMP+ and ACMP– and one digital output pin ACMPO. Each of
these pins can accept an input voltage that varies across the full operating voltage range of the MCU. As
shown in
ACMP+ pin is connected to the comparator non-inverting input if ACBGS is a 0. As shown in
the ACMPO pin can be enabled to drive an external pin.
The signal properties of ACMP are shown in
9.3
9.3.1
The ACMP includes one register:
130
ACMP+
ACMP–
Reference
Internal
Figure
External Signal Description
Memory Map
Register Descriptions
9-2, the ACMP– pin is connected to the inverting input of the comparator, and the
Figure 9-2. Analog Comparator 5V (ACMP5) Block Diagram
ACMPO
ACMP–
ACMP+
Signal
Comparator
+
-
MC9S08JM16 Series Data Sheet, Rev. 2
Inverting analog input to the ACMP.
(Minus input)
Non-inverting analog input to the ACMP.
(Positive input)
Digital output of the ACMP.
Table 9-1. Signal Properties
ACBGS
ACME
Table
Function
9-1.
Status & Control
Internal Bus
Register
Interrupt
Control
I/O
O
I
I
ACIE
ACOPE
ACF
Freescale Semiconductor
ACMP
INTERRUPT
REQUEST
ACMPO
Figure
9-2,
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