mc9rs08ka2 Freescale Semiconductor, Inc, mc9rs08ka2 Datasheet - Page 81

• Manufacturer Part Number: mc9rs08ka2
• Description: Rs08 Microcontrollers 8-bit Microcontroller Family
• Manufacturer: Freescale Semiconductor, Inc

Chapter 10
Analog Comparator (RS08ACMPV1)
10.1
The analog comparator module (ACMP) provides a circuit for comparing two analog input voltages or for
comparing one analog input voltage to an internal reference voltage. The comparator circuit is designed to
operate across the full range of the supply voltage (rail to rail operation).
Figure 10-1
Freescale Semiconductor
V
V
DD
SS
Introduction
Figure 10-1. MC9RS08KA2 Series Block Diagram Highlighting ACMP Block and Pins
shows the MC9RS08KA2 Series block diagram with the ACMP highlighted.
WAKEUP
MC9RS08KA2 — 2048 BYTES
MC9RS08KA1 — 1024 BYTES
RESET AND STOP WAKEUP
BDC
RS08 SYSTEM CONTROL
USER RAM — 63 BYTES
INTERNAL REGULATOR
MODES OF OPERATION
RTI
POWER MANAGEMENT
INTERNAL CLOCK
POWER AND
USER FLASH
RS08 CORE
SOURCE
(ICS)
CPU
COP
LVD
MC9RS08KA2 Series Data Sheet, Rev. 3
NOTES:
(1) Pins are software configurable with pullup/pulldown device if input port.
(2) Integrated pullup device enabled if reset enabled (RSTPE=1).
(3) These pins are not available in 6-pin package
ANALOG COMPARATOR
INTERRUPT MODULE
5-BIT KEYBOARD
MODULO TIMER
MODULE
MODULE
(ACMP)
(MTIM)
(KBI)
5
ACMPO
ACMP+
ACMP-
TCLK
PTA2/KBIP2/TCLK/RESET/V
PTA0/KBIP0/ACMP+
PTA1/KBIP1/ACMP-
PTA3/ACMPO/BKGD/MS
PTA4/KBIP4
PTA5/KBIP5
(1),(3)
(1), (3)
(1)
(1)
PP
(1),( 2)
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