DEMO9S12XEP100 Freescale Semiconductor, DEMO9S12XEP100 Datasheet - Page 119

• 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

Freescale Semiconductor
PUPKE
BKPUE
PUPEE
PUPDE
PUPCE
PUPBE
PUPAE
Field
7
6
5
4
3
2
1
0
Pull-up Port K Enable—Enable pull-up devices on all Port K input pins
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are enabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
BKGD pin pull-up Enable—Enable pull-up devices on BKGD pin
This bit configures whether a pull-up device is activated, if the pin is used as input. This bit has no effect if the pin is
used as outputs. Out of reset the pull-up device is enabled.
1 Pull-up device enabled.
0 Pull-up device disabled.
Reserved—
Pull-up Port E Enable—Enable pull-up devices on all Port E input pins except on pins 5 and 6 which have pull-down
devices only enabled during reset. This bit has no effect on these pins.
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are enabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
Pull-up Port D Enable—Enable pull-up devices on all Port D input pins
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are disabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
Pull-up Port C Enable—Enable pull-up devices on all Port C input pins
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are disabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
Pull-up Port B Enable—Enable pull-up devices on all Port B input pins
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are disabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
Pull-up Port A Enable—Enable pull-up devices on all Port A input pins
This bit configures whether pull-up devices are activated, if the pins are used as inputs. This bit has no effect if the
pins are used as outputs. Out of reset the pull-up devices are disabled.
1 Pull-up devices enabled.
0 Pull-up devices disabled.
Table 2-14. PUCR Register Field Descriptions
MC9S12XE-Family Reference Manual , Rev. 1.23
Description
Chapter 2 Port Integration Module (S12XEPIMV1)
119