XC908AS60ACFU Motorola Semiconductor Products, XC908AS60ACFU Datasheet - Page 344

• Manufacturer Part Number: XC908AS60ACFU
• Description: MC68HC908AZ60A, MC68HC908AS60A Hcmos Microcontroller Unit Technical Data
• Manufacturer: Motorola Semiconductor Products

Programmable Interrupt Timer (PIT)
21.3 Features
21.4 Functional Description
Technical Data
344
BUS CLOCK
INTERNAL
CSTOP
CRST
TIMPMODH:TIMPMODL
16-BIT COMPARATOR
16-BIT COUNTER
Features of the PIT include:
Figure 21-1
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 21-1. PIT Block Diagram
Programmable Interrupt Timer (PIT)
shows the structure of the PIT. The central component of
PPS2
PRESCALER SELECT
PPS1
PPS0
MC68HC908AZ60A — Rev 2.0
POIE
POF
INTER-
LOGIC
RUPT
MOTOROLA