PBMCUSLK Freescale Semiconductor, PBMCUSLK Datasheet - Page 16

• Manufacturer Part Number: PBMCUSLK
• Description: PROJECT BOARD FOR MCU
• Manufacturer: Freescale Semiconductor

Specifications of PBMCUSLK

• Module/board Type: Student Learning Kit
• Silicon Manufacturer: Freescale
• Core Architecture: HCS08, S12
• Core Sub-architecture: HCS08, S12
• Silicon Core Number: MC9S08, MC9S12
• Silicon Family Name: S08QG, S12D
• Rohs Compliant: Yes
• For Use With/related Products: HC(S)12(X), HC(S)08, DSP, and ColdFire modules
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

LCD Contrast
The PBMCUSLK offers two methods for controlling the LCD panel contrast, fixed or adjustable,
controlled through jumper CONTRAST(JP12) as illustrated in figure 8.
provides near maximum contrast and supports all STN, Reflective, type LCD panels. The fixed
mode is pre-set to a contrast easily viewable in ambient, indoor lighting. The adjustable option
allows the use on the project board potentiometer to vary the contrast voltage applied to the
LCD panel. This allows the user to apply temperature or lighting compensation if needed.
Figure 8: Contrast Select – JP12
LCD Select
To allow maximum flexibility, the control signal used to transfer data to the LCD panel is
selectable. Option header SS_SEL
signal or the GPIO signal connected to MCU_PORT-25.
Figure 9: SS_SEL Option Header
*
16
To prevent signal corruption when using the SPI signals as GPIO, the user should idle the SPI
For project boards labeled “MCU Project Board -2 AXM-0368 Rev C” this jumper is labeled SS*.
GPIO
SS*
JP5
●
●
1
2
●
JP12
1
JP12
3
●
●
2
4
Selects dedicated SS
input source
ADJ
FIX
ADJ
FIX
circuitry by removing the SS* jumper.
*
, described in figure 9, selects between the SPI port SS*
Selects on-board POT to allow adjustment of LCD contrast
voltage.
Selects fixed LCD contrast voltage.
NOTE
GPIO
SS*
JP5
●
2
3
Selects GPIO signal on MCU_25
Freescale Semiconductor
The fixed option