mc68hc908rf2 Freescale Semiconductor, Inc, mc68hc908rf2 Datasheet - Page 94

• Manufacturer Part Number: mc68hc908rf2
• Description: M68hc08 Microcontrollers Microcontroller / Transmitter
• Manufacturer: Freescale Semiconductor, Inc

Keyboard/External Interrupt Module (KBI)
Data Sheet
94
CONTROL AND STATUS REGISTERS — 32 BYTES
RST
IRQ
OSC2
OSC1
1. Pin contains integrated pullup resistor
2. High current sink pin
3. Pin contains software selectable pullup resistor
V
USER FLASH VECTOR SPACE — 14 BYTES
V
DD
SS
REGISTERS
(1)
(1)
CPU
MONITOR ROM — 768 BYTES
USER FLASH — 2031 BYTES
USER RAM — 128 BYTES
M68HC08 CPU
SOFTWARE SELECTABLE
KEYBOARD/INTERRUPT
INTERNAL OSCILLATOR
SYSTEM INTEGRATION
POWER
POWER-ON RESET
Figure 7-1. Block Diagram Highlighting KBI Block and Pins
ARITHMETIC/LOGIC
MODULE
MODULE
MODULE
MODULE
UNIT (ALU)
Freescale Semiconductor, Inc.
For More Information On This Product,
Keyboard/External Interrupt Module (KBI)
Go to: www.freescale.com
COMPUTER OPERATING
LOW-VOLTAGE INHIBIT
PROPERLY MODULE
2-CHANNEL TIMER
SECURITY
INTERNAL BUS
MODULE
MODULE
MODULE
TRANSMITTER
UHF
MC68HC908RF2 — Rev. 4.0
V
MODE
ENABLE
DATA
BAND
RFOUT
GNDRF
REXT
XTAL1
XTAL0
DATACLK
CFSK
CC
PTA7
PTA6/KBD6
PTA5/KBD5
PTA4/KBD4
PTA3/KBD3
PTA2/KBD2
PTA1/KBD1
PTA0
PTB3/TCLK
PTB2/TCH0
PTB1
PTB0/MCLK
MOTOROLA
(2)
(2)
(2) (3)
(2) (3)
(2) (3)
(2) (3)
(2) (3)
(2) (3)