MC68HC705C8ACB Freescale Semiconductor, MC68HC705C8ACB Datasheet - Page 89

• Manufacturer Part Number: MC68HC705C8ACB
• Manufacturer: Freescale Semiconductor

Specifications of MC68HC705C8ACB

• Cpu Family: HC05
• Device Core Size: 8b
• Frequency (max): 2.1MHz
• Interface Type: SCI/SPI
• Program Memory Type: EPROM
• Program Memory Size: 8KB
• Total Internal Ram Size: 304Byte
• # I/os (max): 24
• Number Of Timers - General Purpose: 1
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 3V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Through Hole
• Pin Count: 42
• Package Type: SPDIP
• Lead Free Status / Rohs Status: Not Compliant

8.1 Contents
8.2 Introduction
8.3 Timer Operation
MC68HC705C8A — Rev. 3
MOTOROLA
Technical Data — MC68HC705C8A
8.2
8.3
8.3.1
8.3.2
8.4
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.4.6
This section describes the operation of the 16-bit capture/compare timer.
Figure 8-1
summary of the timer input/output (I/O) registers.
The core of the capture/compare timer is a 16-bit free-running counter.
The counter is the timing reference for the input capture and output
compare functions. The input capture and output compare functions can
latch the times at which external events occur, measure input
waveforms, and generate output waveforms and timing delays. Software
can read the value in the counter at any time without affecting the
counter sequence.
Freescale Semiconductor, Inc.
For More Information On This Product,
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Timer Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Timer I/O Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Input Capture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Output Compare . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .93
Timer Control Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94
Timer Status Register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96
Timer Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97
Alternate Timer Registers. . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Input Capture Registers . . . . . . . . . . . . . . . . . . . . . . . . . . 100
Output Compare Registers. . . . . . . . . . . . . . . . . . . . . . . . . 101
shows the structure of the timer module.
Go to: www.freescale.com
Section 8. Capture/Compare Timer
Capture/Compare Timer
Figure 8-2
Technical Data
is a