MC9S12DT256MPVE Freescale Semiconductor, MC9S12DT256MPVE Datasheet - Page 1007

• Manufacturer Part Number: MC9S12DT256MPVE
• Description: IC MCU 256K FLASH 25MHZ 112-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12DT256MPVE

• Core Processor: HCS12
• Core Size: 16-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SCI, SPI
• Peripherals: PWM, WDT
• Number Of I /o: 91
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 12K x 8
• Voltage - Supply (vcc/vdd): 2.35 V ~ 5.25 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 112-LQFP
• Processor Series: S12D
• Core: HCS12
• Data Bus Width: 16 bit
• Data Ram Size: 12 KB
• Interface Type: CAN/I2C/SCI/SPI
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 91
• Number Of Timers: 1
• Operating Supply Voltage: 5 V to 2.5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: M68KIT912DP256
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 2 (8-ch x 10-bit)
• No. Of I/o's: 91
• Eeprom Memory Size: 4KB
• Ram Memory Size: 12KB
• Cpu Speed: 25MHz
• No. Of Timers: 1
• No. Of Pwm Channels: 8
• Digital Ic Case Style: LQFP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

DDRM[7:0]
RDRM[7:0]
Reset
Reset
The DDRM bits revert to controlling the I/O direction of a pin when the associated peripheral
module is disabled.
Field
24.0.5.29 Port M Reduced Drive Register (RDRM)
Read: Anytime.
Write: Anytime.
This register configures the drive strength of each Port M output pin as either full or reduced. If the
port is used as input this bit is ignored.
Field
24.0.5.30 Port M Pull Device Enable Register (PERM)
Read: Anytime.
Write: Anytime.
7–0
7–0
W
W
R
R
RDRM7
PERM7
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
Reduced Drive Port M
0 Full drive strength at output.
1 Associated pin drives at about 1/6 of the full drive strength.
7
0
7
0
on PTM or PTIM registers, when changing the DDRM register.
RDRM6
PERM6
Figure 24-32. Port M Pull Device Enable Register (PERM)
0
0
6
6
Figure 24-31. Port M Reduced Drive Register (RDRM)
Table 24-29. DDRM Field Descriptions
Table 24-30. RDRM Field Descriptions
RDRM5
PERM5
5
0
5
0
RDRM4
PERM4
0
0
4
4
Description
Description
RDRM3
PERM3
3
0
3
0
RDRM2
PERM2
0
0
2
2
RDRM1
PERM1
1
0
1
0
RDRM0
PERM0
0
0
0
0