MC9S12C128VFU Freescale Semiconductor, MC9S12C128VFU Datasheet - Page 82
MC9S12C128VFU
Manufacturer Part Number
MC9S12C128VFU
Description
Manufacturer
Freescale Semiconductor
Datasheet
1.MC9S12C128VFU.pdf
(690 pages)
Specifications of MC9S12C128VFU
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
25MHz
Interface Type
CAN/SCI/SPI
Program Memory Type
Flash
Program Memory Size
128KB
Total Internal Ram Size
4KB
# I/os (max)
60
Number Of Timers - General Purpose
8
Operating Supply Voltage (typ)
2.5/5V
Operating Supply Voltage (max)
2.75/5.5V
Operating Supply Voltage (min)
2.35/2.97V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 105C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
80
Package Type
PQFP
Lead Free Status / Rohs Status
Not Compliant
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Chapter 2 Port Integration Module (PIM9C32) Block Description
2.3.2.1.2
Read: Anytime.
Write: Never, writes to this register have no effect.
2.3.2.1.3
Read: Anytime.
Write: Anytime.
82
Module Base + 0x0001
Module Base + 0x0002
DDRT[7:0]
PTIT[7:0]
Reset
Reset
Field
Field
7–0
7–0
W
W
R
R
DDRT7
PTIT7
Port T Input Register — This register always reads back the status of the associated pins. This can also be
used to detect overload or short circuit conditions on output pins.
Data Direction Port T — This register configures each port T pin as either input or output.
The standard TIM / PWM modules forces the I/O state to be an output for each standard TIM / PWM module port
associated with an enabled output compare. In these cases the data direction bits will not change.
The DDRT bits revert to controlling the I/O direction of a pin when the associated timer output compare is
disabled.
The timer input capture always monitors the state of the pin.
0 Associated pin is configured as input.
1 Associated pin is configured as output.
Note: Due to internal synchronization circuits, it can take up to 2 bus cycles until the correct value is read on PTT
—
0
7
7
Port T Input Register (PTIT)
Port T Data Direction Register (DDRT)
or PTIT registers, when changing the DDRT register.
= Unimplemented or Reserved
DDRT6
PTIT6
—
0
6
6
Figure 2-5. Port T Data Direction Register (DDRT)
Figure 2-4. Port T Input Register (PTIT)
Table 2-5. DDRT Field Descriptions
DDRT5
Table 2-4. PTIT Field Descriptions
PTIT5
MC9S12C-Family / MC9S12GC-Family
—
0
5
5
DDRT4
PTIT4
Rev 01.24
—
0
4
4
Description
Description
DDRT3
PTIT3
—
0
3
3
DDRT2
PTIT2
—
0
2
2
DDRT1
Freescale Semiconductor
PTIT1
—
0
1
1
DDRT0
PTIT0
—
0
0
0
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