MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 939

• Manufacturer Part Number: MC9S12XDT512CAA
• Manufacturer: Freescale

Specifications of MC9S12XDT512CAA

• Cpu Family: HCS12
• Device Core Size: 16b
• Frequency (max): 40MHz
• Interface Type: CAN/I2C/SCI/SPI
• Total Internal Ram Size: 32KB
• # I/os (max): 59
• Number Of Timers - General Purpose: 12
• Operating Supply Voltage (typ): 2.5/5V
• Operating Supply Voltage (max): 2.75/5.5V
• Operating Supply Voltage (min): 2.35/3.15V
• 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: 80
• Package Type: PQFP
• Program Memory Type: Flash
• Program Memory Size: 512KB
• Lead Free Status / RoHS Status: Compliant

WOMM[7:0]
PPSM[7:0]
Reset
Reset
23.0.5.35 Port M Polarity Select Register (PPSM)
Read: Anytime.
Write: Anytime.
This register selects whether a pull-down or a pull-up device is connected to the pin. If CAN is
active, a pull-up device can be activated on the related RXCAN inputs, but not a pull-down.
Field
23.0.5.36 Port M Wired-OR Mode Register (WOMM)
Read: Anytime.
Write: Anytime.
This register configures the output pins as wired-OR. If enabled the output is driven active low only
(open-drain). A logic level of “1” is not driven. It applies also to the CAN outputs and allows a
multipoint connection of several serial modules. This bit has no influence on pins used as inputs.
Field
7–0
7–0
W
W
R
R
WOMM7
PPSM7
Pull Select Port M
0 A pull-up device is connected to the associated port M pin, if enabled by the associated bit in register PERM
1 A pull-down device is connected to the associated port M pin, if enabled by the associated bit in register PERM
Wired-OR Mode Port M
0 Output buffers operate as push-pull outputs.
1 Output buffers operate as open-drain outputs.
7
0
7
0
and if the port is used as general purpose or RXCAN input.
and if the port is used as a general purpose but not as RXCAN.
WOMM6
PPSM6
Figure 23-38. Port M Wired-OR Mode Register (WOMM)
0
0
6
6
Figure 23-37. Port M Polarity Select Register (PPSM)
Table 23-37. WOMM Field Descriptions
Table 23-36. PPSM Field Descriptions
WOMM5
PPSM5
5
0
5
0
WOMM4
PPSM4
0
0
4
4
Description
Description
WOMM3
PPSM3
3
0
3
0
WOMM2
PPSM2
0
0
2
2
WOMM1
PPSM1
1
0
1
0
WOMM0
PPSM0
0
0
0
0