mc9s08dz32 Freescale Semiconductor, Inc, mc9s08dz32 Datasheet - Page 168

• Manufacturer Part Number: mc9s08dz32
• Description: Hcs08 Microcontrollers 8-bit Can Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 9 Analog Comparator (S08ACMPV3)
9.1.4
The block diagram for the analog comparator module is shown
9.2
The ACMP has two analog input pins, ACMPx+ and ACMPx− and one digital output pin ACMPxO. Each
of these pins can accept an input voltage that varies across the full operating voltage range of the MCU.
As shown in
ACMPx+ pin is connected to the comparator non-inverting input if ACBGS is a 0. As shown in
the ACMPxO pin can be enabled to drive an external pin.
The signal properties of ACMP are shown in
168
ACMPx+
ACMPx-
Reference
Internal
External Signal Description
Block Diagram
Figure
9-2, the ACMPx- pin is connected to the inverting input of the comparator, and the
ACMPxO
ACMPx+
ACMPx-
Signal
Figure 9-2. Analog Comparator (ACMP) Block Diagram
Comparator
+
-
MC9S08DZ60 Series Data Sheet, Rev. 3
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
Figure
9-2.
I/O
O
I
I
ACIE
ACOPE
ACF
Freescale Semiconductor
ACMPx
INTERRUPT
REQUEST
ACMPxO
Figure
9-2,