MC68HC908AB32CFU Freescale Semiconductor, MC68HC908AB32CFU Datasheet - Page 222

• Manufacturer Part Number: MC68HC908AB32CFU
• Description: IC MCU 8MHZ 32K FLASH 64-QFP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908AB32CFU

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI, SPI
• Peripherals: POR, PWM
• Number Of I /o: 51
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Programmable Interrupt Timer (PIT)
13.3 Features
13.4 Functional Description
Technical Data
222
BUS CLOCK
INTERNAL
PSTOP
PRST
16-BIT COMPARATOR
16-BIT COUNTER
PMODH:PMODL
Features of the PIT include the following:
Figure 13-1
the PIT is the 16-bit PIT counter that can operate as a free-running
counter or a modulo up-counter. The counter provides the timing
reference for the interrupt. The PIT counter modulo registers,
PMODH:PMODL, control the modulo value of the counter. Software can
read the counter value at any time without affecting the counting
sequence.
PRESCALER
•
•
•
Programmable PIT clock input
Free-running or modulo up-count operation
PIT counter stop and reset bits
Figure 13-1. PIT Block Diagram
Programmable Interrupt Timer (PIT)
shows the structure of the PIT. The central component of
PPS2
PRESCALER SELECT
PPS1
PPS0
POIE
POF
MC68HC908AB32
Freescale Semiconductor
INTERRUPT
LOGIC
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Rev. 1.1