mc9rs08ka2 Freescale Semiconductor, Inc, mc9rs08ka2 Datasheet - Page 51

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

Chapter 7
Keyboard Interrupt (RS08KBIV1)
7.1
The keyboard interrupt (KBI) module provides independently enabled external interrupt sources.
7.1.1
The KBI features include:
Freescale Semiconductor
•
•
•
•
V
V
DD
SS
Each keyboard interrupt pin has an individual pin enable bit
Each keyboard interrupt pin is programmable as falling edge (or rising edge) only, or both falling
edge and low level (or both rising edge and high level) interrupt sensitivity
One software-enabled keyboard interrupt
Exit from low-power modes
Introduction
Figure 7-1. MC9RS08KA2 Series Block Diagram with KBI Block and Pins Highlighted
Features
USER FLASH — 2,048 BYTES
WAKEUP
RESET AND STOP WAKEUP
BDC
RS08 SYSTEM CONTROL
USER RAM — 63 BYTES
INTERNAL REGULATOR
MODES OF OPERATION
POWER MANAGEMENT
RTI
INTERNAL CLOCK
POWER AND
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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