MC9S12XDP512CAL Freescale, MC9S12XDP512CAL Datasheet - Page 849
MC9S12XDP512CAL
Manufacturer Part Number
MC9S12XDP512CAL
Description
Manufacturer
Freescale
Datasheet
1.MC9S12XDP512CAL.pdf
(1348 pages)
Specifications of MC9S12XDP512CAL
Cpu Family
HCS12
Device Core Size
16b
Frequency (max)
40MHz
Interface Type
CAN/I2C/SCI/SPI
Total Internal Ram Size
32KB
# I/os (max)
91
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
2(16-chx10-bit)
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
112
Package Type
LQFP
Program Memory Type
Flash
Program Memory Size
512KB
Lead Free Status / RoHS Status
Compliant
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22.3.2.32 Port M Data Direction Register (DDRM)
Read: Anytime.
Write: Anytime.
This register configures each port M pin as either input or output.
The CAN/SCI3 forces the I/O state to be an output for each port line associated with an enabled output
(TXCAN[3:0], TXD3). TheyAlso forces the I/O state to be an input for each port line associated with an
enabled input (RXCAN[3:0], RXD3). In those cases the data direction bits will not change.
The DDRM bits revert to controlling the I/O direction of a pin when the associated peripheral module is
disabled.
Freescale Semiconductor
DDRM[7:0]
Reset
Field
7–0
W
R
DDRM7
Data Direction Port M
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 clock cycles until the correct value is read
0
7
on PTM or PTIM registers, when changing the DDRM register.
DDRM6
0
6
Figure 22-34. Port M Data Direction Register (DDRM)
Table 22-33. DDRM Field Descriptions
DDRM5
MC9S12XDP512 Data Sheet, Rev. 2.21
0
5
DDRM4
0
4
Description
Chapter 22 DP512 Port Integration Module (S12XDP512PIMV2)
DDRM3
0
3
DDRM2
0
2
DDRM1
0
1
DDRM0
0
0
851
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