MC9S12E128CPV Freescale Semiconductor, MC9S12E128CPV Datasheet - Page 156
MC9S12E128CPV
Manufacturer Part Number
MC9S12E128CPV
Description
Microcontrollers (MCU) 16 Bit 16MHz
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12E128CPV.pdf
(606 pages)
Specifications of MC9S12E128CPV
Data Bus Width
16 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
8 KB
Interface Type
SCI, SPI
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
92
Number Of Timers
16 bit
Operating Supply Voltage
3.135 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Package / Case
LQFP-112
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit
On-chip Dac
8 bit, 2 Channel
Lead Free Status / Rohs Status
No RoHS Version Available
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Chapter 3 Port Integration Module (PIM9E128V1)
3.3.7.3
Read: Anytime. Write: Anytime.
This register configures port pins PU[7:0] as either input or output.
If a pulse width modulator channel is enabled, the associated pin is forced to be an output and the
associated Data Direction Register bit has no effect. If the associated pulse width modulator channel is
disabled, the corresponding DDRUx bit reverts to control the I/O direction of the associated pin.
If the TIM2 module is enabled, each port pin configured for output compare is forced to be an output and
the associated Data Direction Register bit has no effect. If the associated timer output compare is disabled,
the corresponding DDRUx bit reverts to control the I/O direction of the associated pin.
If the TIM2 module is enabled, each port pin configured as an input capture has the corresponding DDRUx
bit controlling the I/O direction of the associated pin.
When both a timer function and a PWM function are enabled on the same pin, the MODRR register
determines which function has control of the pin
156
DDRU[7:0]
Reset
Field
7:0
W
R
DDRU7
Data Direction Port U
0 Associated pin is configured as input.
1 Associated pin is configured as output.
Port U Data Direction Register (DDRU)
0
7
DDRU6
0
6
Figure 3-44. Port U Data Direction Register (DDRU)
Table 3-31. DDRT Field Descriptions
DDRU5
MC9S12E128 Data Sheet, Rev. 1.07
0
5
DDRU4
0
4
Description
DDRU3
0
3
DDRU2
0
2
DDRU1
Freescale Semiconductor
0
1
DDRU0
0
0
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