mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 161
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mc9s12hz256v2
Manufacturer Part Number
mc9s12hz256v2
Description
Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12HZ256V2.pdf
(692 pages)
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Figure 4-56
analog module is enabled all associated digital output ports are disabled and all associated digital input
ports read “1”.
4.4.4
If the port is used as an output the Reduced Drive Register allows the configuration of the drive strength.
4.4.5
The Pull Device Enable Register turns on a pull-up or pull-down device. The pull device becomes active
only if the pin is used as an input or as a wired-or output.
Freescale Semiconductor
Reduced Drive Register
Pull Device Enable Register
shows the state of digital inputs and outputs when an analog module drives the port. When the
Analog
Module
Figure 4-55. Illustration of I/O Pin Functionality
Figure 4-56. Digital Ports and Analog Module
Module
Enable
Module
Digital
DDRx
PTIx
PTx
MC9S12HZ256 Data Sheet, Rev. 2.05
Analog
Output
data out
output enable
module enable
0
1
Output
Digital
Digital
Input
0
1
0
1
PIM Boundary
1
0
1
0
Chapter 4 Port Integration Module (PIM9HZ256V2)
1
PAD
PAD
161
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