MC9S12XET256CAG Freescale Semiconductor, MC9S12XET256CAG Datasheet - Page 138

• Manufacturer Part Number: MC9S12XET256CAG
• Description: MCU 16BIT 256K FLASH 144-LQFP
• Manufacturer: Freescale Semiconductor
• Series: HCS12r

Specifications of MC9S12XET256CAG

• Core Processor: HCS12X
• Core Size: 16-Bit
• Speed: 50MHz
• Connectivity: CAN, EBI/EMI, I²C, IrDA, SCI, SPI
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 119
• Program Memory Size: 256KB (256K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 4K x 8
• Ram Size: 16K x 8
• Voltage - Supply (vcc/vdd): 1.72 V ~ 5.5 V
• Data Converters: A/D 24x12b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 144-LQFP
• Processor Series: S12XE
• Core: HCS12
• 3rd Party Development Tools: EWHCS12
• Development Tools By Supplier: KIT33812ECUEVME, EVB9S12XEP100, DEMO9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

1. Read: Anytime.
1. Read: Anytime.
Chapter 2 Port Integration Module (S12XEPIMV1)
2.3.40
2.3.41
138
Address 0x0253
Address 0x0254
Write: Anytime.
Write: Anytime.
RDRM
PERM
Field
Field
Reset
Reset
7-0
7-0
W
W
R
R
Port M reduced drive—Select reduced drive for outputs
This register configures the drive strength of Port M output pins 7 through 0 as either full or reduced independent of
the function used on the pins. If a pin is used as input this bit has no effect.
1 Reduced drive selected (approx. 1/5 of the full drive strength).
0 Full drive strength enabled.
Port M pull device enable—Enable pull-up devices on input pins
These bits configure whether a pull device is activated, if the associated pin is used as an input or wired-or output.
This bit has no effect if the pin is used as push-pull output. Out of reset no pull device is enabled.
1 Pull device enabled.
0 Pull device disabled.
RDRM7
PERM7
Port M Reduced Drive Register (RDRM)
Port M Pull Device Enable Register (PERM)
0
0
7
7
RDRM6
PERM6
Figure 2-39. Port M Pull Device Enable Register (PERM)
0
0
6
6
Figure 2-38. Port M Reduced Drive Register (RDRM)
Table 2-36. RDRM Register Field Descriptions
Table 2-37. PERM Register Field Descriptions
MC9S12XE-Family Reference Manual , Rev. 1.23
RDRM5
PERM5
0
0
5
5
RDRM4
PERM4
0
0
4
4
Description
Description
RDRM3
PERM3
3
0
3
0
RDRM2
PERM2
0
0
2
2
Access: User read/write
Access: User read/write
Freescale Semiconductor
RDRM1
PERM1
0
0
1
1
RDRM0
PERM0
0
0
0
0
(1)
(1)