s908ab32ag0cfue Freescale Semiconductor, Inc, s908ab32ag0cfue Datasheet - Page 222

• Manufacturer Part Number: s908ab32ag0cfue
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

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