TWR-MCF51JF-KIT Freescale Semiconductor, TWR-MCF51JF-KIT Datasheet - Page 13

• Manufacturer Part Number: TWR-MCF51JF-KIT
• Description: MCF51JF Tower Kit
• Manufacturer: Freescale Semiconductor
• Series: ColdFire®r
• Type: MCUr

Specifications of TWR-MCF51JF-KIT

• Rohs Compliant: YES
• Contents: Board
• Peak Reflow Compatible (260 C): Yes
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: MCF51JF128

2.11 Touch Interface
The touch sensing input (TSI) module of the ColdFire+ MCUs provides capacitive touch sensing
detection with high sensitivity and enhanced robustness. Each TSI pin implements the capacitive
measurement of an electrode.
The TWR-MCF51JF provides two methods for evaluating the TSI module. There are two electrodes on-
board the TWR-MCF51JF that simulate pushbuttons. Additionally, six TSI signals are connected to a
Touch Tower Plug-in (TWRPI) socket that can accept Touch TWRPI daughter cards that may feature
keypads, rotary dials, sliders, etc.
The pinout for the Touch TWRPI socket is defined in Table 2. Refer to Table 4 “I/O Connectors and Pin
Usage Table” for the specific MCF51JF pin connections to the Touch TWRPI socket.
TWRMCF51JFUM
Left-side 2x10 Connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Table 1. General Purpose TWRPI socket pinout
TWR-MCF51JF Tower Module User's Manual
5V VCC
3.3 V VCC
GND
3.3V VDDA
VSS (Analog GND)
VSS (Analog GND)
VSS (Analog GND)
ADC: Analog 0
ADC: Analog 1
VSS (Analog GND)
VSS (Analog GND)
ADC: Analog 2
VSS (Analog GND)
VSS (Analog GND)
GND
GND
ADC: TWRPI ID 0
ADC: TWRPI ID 1
GND
Reset
Table 2. Touch TWRPI socket pinout
Description
1
2
3
4
5
6
7
Pin
5V VCC
3.3 V VCC
Electrode 0
3.3V VDDA
Electrode 1
VSS (Analog GND)
Electrode 2
Description
Right-side 2x10 Connector
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
GND
GND
I2C: SCL
I2C: SDA
GND
GND
GND
GND
SPI: MISO
SPI: MOSI
SPI: SS
SPI: CLK
GND
GND
GPIO: GPIO0/IRQ
GPIO: GPIO1/IRQ
GPIO: GPIO2
GPIO: GPIO3
GPIO: GPIO4/Timer
GPIO: GPIO5/Timer
Description
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