mc68hc908lb8 Freescale Semiconductor, Inc, mc68hc908lb8 Datasheet - Page 92

• Manufacturer Part Number: mc68hc908lb8
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

High Resolution PWM (HRP)
92
Notes:
1. Pin contains integrated pullup device.
2. Fault function switchable between pins PTB2 and PTB7.
USER FLASH VECTOR SPACE — 34 BYTES
REGISTERS
V
V
ROUTINES ROM — 674 BYTES
CPU
DD
SS
MONITOR ROM — 350 BYTES
USER FLASH — 8 KBYTES
REGISTERS — 64 BYTES
USER RAM — 128 BYTES
CONTROL AND STATUS
FLASH PROGRAMMING
M68HC08 CPU
Setting the HRPOE bit in the HRPCTRL register forces the corresponding
HRP output pins to be outputs, overriding the data direction register. In
order to read the states of the pins, the data direction register bit must be
a 0.
Setting the SHTEN bit in the HRPCTRL register forces the SHTDWN pin to
be an input, overriding the data direction register. In order to read the state
of the pin, the data direction register bit must be a 0.
SYSTEM INTEGRATION
Figure 10-1. Block Diagram Highlighting HRP Block and Pins
ARITHMETIC/LOGIC
OSCILLATOR
MODULE
MODULE
UNIT (ALU)
POWER
MC68HC908LB8 Data Sheet, Rev. 1
8-BIT ANALOG-TO-DIGITAL
HIGH RESOLUTION PWM
COMPUTER OPERATING
KEYBOARD INTERRUPT
OP AMP/COMPARATOR
LOW-VOLTAGE INHIBIT
CONVERTER MODULE
DUAL CHANNEL PWM
NOTE
PROPERLY MODULE
2-CHANNEL TIMER
INTERNAL BUS
MODULE
MODULE
MODULE
MODULE
MODULE
MODULE
Freescale Semiconductor
PTA6
PTA5
PTA4
PTA3
PTA2
PTA1
PTA0
PTB7/V
PTB6/V–
PTB5/V+
PTB4/PWM1
PTB3/PWM0
PTB2/FAULT
PTB1/BOT
PTB0/TOP
PTC2
PTC1
PTC0
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
/AD5/TCH0/KBI6
/RST/KBI5
/AD4/KBI4
/AD3/KBI3
/AD2/KBI2
/AD1/KBI1
/AD0/KBI0
OUT
/SHTDWN/IRQ
/OSC2
/OSC1
/AD6/FAULT
(2)
(2)