MC9S12XDT512CAA Freescale, MC9S12XDT512CAA Datasheet - Page 935

• 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

WOMS[7:0]
PPSS[7:0]
Reset
Field
23.0.5.29 Port S Wired-OR Mode Register (WOMS)
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 SPI and SCI outputs and allows
a multipoint connection of several serial modules. These bits have no influence on pins used as
inputs.
Field
7–0
7–0
W
R
WOMS7
Pull Select Port S
0 A pull-up device is connected to the associated port S pin, if enabled by the associated bit in register PERS
1 A pull-down device is connected to the associated port S pin, if enabled by the associated bit in register PERS
Wired-OR Mode Port S
0 Output buffers operate as push-pull outputs.
1 Output buffers operate as open-drain outputs.
7
0
and if the port is used as input or as wired-OR output.
and if the port is used as input.
WOMS6
Figure 23-31. Port S Wired-OR Mode Register (WOMS)
0
6
Table 23-31. WOMS Field Descriptions
Table 23-30. PPSS Field Descriptions
WOMS5
5
0
WOMS4
0
4
Description
Description
WOMS3
3
0
WOMS2
0
2
WOMS1
1
0
WOMS0
0
0