DEMO9S12XEP100 Freescale Semiconductor, DEMO9S12XEP100 Datasheet - Page 72

• Manufacturer Part Number: DEMO9S12XEP100
• Description: BOARD DEMO FOR MC9S12XEP100
• Manufacturer: Freescale Semiconductor
• Type: MCUr

Specifications of DEMO9S12XEP100

• Contents: Board, Cables, CD
• Processor To Be Evaluated: MC9S12XEP100
• Data Bus Width: 16 bit
• Interface Type: RS-232
• Silicon Manufacturer: Freescale
• Core Architecture: S12
• Core Sub-architecture: S12
• Silicon Core Number: MC9S12
• Silicon Family Name: S12XE
• Rohs Compliant: Yes
• For Use With/related Products: MC9S12XEP100
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Chapter 1 Device Overview MC9S12XE-Family
1.2.3.76
PS0 is a general-purpose input or output pin. It can be configured as the receive pin RXD of serial
communication interface 0 (SCI0).
1.2.3.77
PT[7:6] are general-purpose input or output pins. They can be configured as input capture or output
compare pins IOC[7:6] of the enhanced capture timer (ECT).
1.2.3.78
PT[5] is a general-purpose input or output pin. It can be configured as input capture or output compare pin
IOC[5] of the enhanced capture timer (ECT) or can be configured to output the VREG_API signal.
1.2.3.79
PT[4:0] are general-purpose input or output pins. They can be configured as input capture or output
compare pins IOC[4:0] of the enhanced capture timer (ECT).
1.2.4
MC9S12XE-Family power and ground pins are described below.
Because fast signal transitions place high, short-duration current demands on the power supply, use bypass
capacitors with high-frequency characteristics and place them as close to the MCU as possible.
1.2.4.1
External power and ground for I/O drivers. Bypass requirements depend on how heavily the MCU pins are
loaded. All V
1.2.4.2
Input to the internal voltage regulator. The internal voltage regulator is turned off, if V
1.2.4.3
Power is supplied to the MCU core from the internal voltage regulator, whose load capacitor must be
connected to VDD. The voltage supply of nominally 1.8V is derived from the internal voltage regulator.
The return current path is through the VSS1,VSS2 and VSS3 pins. No static external loading of these pins
is permitted.
72
Because of an order from the United States International Trade Commission, BGA-packaged product lines and partnumbers
indicated here currently are not available from Freescale for import or sale in the United States prior to September 2010
Power Supply Pins
PS0 / RXD0 — Port S I/O Pin 0
PT[7:6] / IOC[7:6] — Port T I/O Pins [7:6]
PT[5] / IOC[5] / VREG_API— Port T I/O Pins [5]
PT[4:0] / IOC[4:0] — Port T I/O Pins [4:0]
VDDX[7:1], VSSX[7:1] — Power and Ground Pins for I/O Drivers
DDX
VDDR — Power Pin for Internal Voltage Regulator
VDD, VSS1,VSS2,VSS3 — Core Power Pins
All V
pins are connected together internally. All V
SS
pins must be connected together in the application.
MC9S12XE-Family Reference Manual , Rev. 1.23
NOTE
SSX
pins are connected together internally.
Freescale Semiconductor
DDR
is tied to ground