MC68HC908AB32 MOTOROLA [Motorola, Inc], MC68HC908AB32 Datasheet - Page 221

• Manufacturer Part Number: MC68HC908AB32
• Description: HCMOS Microcontroller Unit
• Manufacturer: MOTOROLA [Motorola, Inc]

13.1 Contents
13.2 Introduction
MC68HC908AB32
MOTOROLA
Technical Data — MC68HC908AB32
—
Section 13. Programmable Interrupt Timer (PIT)
Rev. 1.0
13.2
13.3
13.4
13.4.1
13.5
13.5.1
13.5.2
13.6
13.7
13.7.1
13.7.2
13.7.3
This section describes the programmable interrupt timer (PIT), which is
a timer whose counter is clocked internally via software programmable
options.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 221
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 222
Low-Power Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
PIT During Break Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . 224
I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225
Figure 13-1
Programmable Interrupt Timer (PIT)
PIT Counter Prescaler . . . . . . . . . . . . . . . . . . . . . . . . . . . . 223
Wait Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
Stop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 224
PIT Status and Control Register. . . . . . . . . . . . . . . . . . . . . 225
PIT Counter Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . 227
PIT Counter Modulo Registers . . . . . . . . . . . . . . . . . . . . . . 228
Go to: www.freescale.com
is a block diagram of the PIT.
Technical Data
221