MC9S08AW32CFGE Freescale Semiconductor, MC9S08AW32CFGE Datasheet - Page 88
![IC MCU 32K FLASH 44-LQFP](/photos/12/35/123573/mc9s08aw16mfge_sml.jpg)
MC9S08AW32CFGE
Manufacturer Part Number
MC9S08AW32CFGE
Description
IC MCU 32K FLASH 44-LQFP
Manufacturer
Freescale Semiconductor
Series
HCS08r
Specifications of MC9S08AW32CFGE
Core Processor
HCS08
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SCI, SPI
Peripherals
LVD, POR, PWM, WDT
Number Of I /o
34
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-LQFP
Processor Series
S08AW
Core
HCS08
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
I2C, SCI, SPI
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
34
Number Of Timers
8
Operating Supply Voltage
- 0.3 V to + 5.8 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWS08
Development Tools By Supplier
DEMO9S08AW60E
Minimum Operating Temperature
- 55 C
On-chip Adc
10 bit, 8 Channel
Package
44LQFP
Family Name
HCS08
Maximum Speed
40 MHz
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
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Chapter 6 Parallel Input/Output
has priority such that if both the digital and analog functions are enabled, the analog function controls the
pin.
It is a good programming practice to write to the port data register before changing the direction of a port
pin to become an output. This ensures that the pin will not be driven momentarily with an old data value
that happened to be in the port data register.
6.5
The pin control registers are located in the high page register block of the memory. These registers are used
to control pullups, slew rate, and drive strength for the I/O pins. The pin control registers operate
independently of the parallel I/O registers.
6.5.1
An internal pullup device can be enabled for each port pin by setting the corresponding bit in one of the
pullup enable registers (PTxPEn). The pullup device is disabled if the pin is configured as an output by the
parallel I/O control logic or any shared peripheral function regardless of the state of the corresponding
pullup enable register bit. The pullup device is also disabled if the pin is controlled by an analog function.
6.5.2
Slew rate control can be enabled for each port pin by setting the corresponding bit in one of the slew rate
control registers (PTxSEn). When enabled, slew control limits the rate at which an output can transition in
order to reduce EMC emissions. Slew rate control has no effect on pins which are configured as inputs.
6.5.3
An output pin can be selected to have high output drive strength by setting the corresponding bit in one of
the drive strength select registers (PTxDSn). When high drive is selected a pin is capable of sourcing and
sinking greater current. Even though every I/O pin can be selected as high drive, the user must ensure that
the total current source and sink limits for the chip are not exceeded. Drive strength selection is intended
to affect the DC behavior of I/O pins. However, the AC behavior is also affected. High drive allows a pin
to drive a greater load with the same switching speed as a low drive enabled pin into a smaller load.
Because of this the EMC emissions may be affected by enabling pins as high drive.
88
Pin Control
Internal Pullup Enable
Output Slew Rate Control Enable
Output Drive Strength Select
MC9S08AC16 Series Data Sheet, Rev. 8
Freescale Semiconductor
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