MC9S08AW32CFGE Freescale, MC9S08AW32CFGE Datasheet - Page 81

• Manufacturer Part Number: MC9S08AW32CFGE
• Manufacturer: Freescale

Specifications of MC9S08AW32CFGE

• Cpu Family: HCS08
• Device Core Size: 8b
• Frequency (max): 40MHz
• Interface Type: I2C/SCI/SPI
• Total Internal Ram Size: 2KB
• # I/os (max): 34
• Number Of Timers - General Purpose: 8
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.7V
• On-chip Adc: 8-chx10-bit
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: LQFP
• Program Memory Type: Flash
• Program Memory Size: 32KB
• Lead Free Status / RoHS Status: Compliant

Chapter 6
Parallel Input/Output
6.1
This chapter explains software controls related to parallel input/output (I/O). The MC9S08AW60 has
seven I/O ports which include a total of 54 general-purpose I/O pins. See
Connections” for more information about the logic and hardware aspects of these pins.
Many of these pins are shared with on-chip peripherals such as timer systems, communication systems, or
keyboard interrupts. When these other modules are not controlling the port pins, they revert to
general-purpose I/O control.
Pins that are not used in the application must be terminated. This prevents excess current caused by floating
inputs and enhances immunity during noise or transient events. Termination methods include:
Never connect unused pins to V
6.2
Parallel I/O and Pin Control features, depending on package choice, include:
Freescale Semiconductor
1
x = Don’t care
(Pull Enable)
•
•
•
•
•
PTxPEn
Configuring unused pins as outputs driving high or low
Configuring unused pins as inputs and using internal or external pullups
A total of 54 general-purpose I/O pins in seven ports
Hysteresis input buffers
Software-controlled pullups on each input pin
0
1
x
1
1
0
Introduction
Features
(Data Direction)
PTxDDn
0
0
1
x
x
x
DD
Table 6-1. KBI and Parallel I/O Interaction
(KBI Pin Enable)
or V
KBIPEn
MC9S08AW60 Data Sheet, Rev 2
SS
0
0
0
1
1
1
.
(KBI Edge Select)
KBEDGn
x
x
x
0
1
x
1
disabled
disabled
disabled
disabled
Chapter 2, “Pins and
enabled
enabled
Pullup
Pulldown
disabled
disabled
disabled
disabled
disabled
enabled
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