TWR-KW2xDxxx
Tower KW2xDxxx Hardware Reference Manual, Rev. 0.2
Freescale Semiconductor
3-9
Figure 3-7. AT45DB161E-SSHD 16Mbit Serial FLASH memory
3.2.4.2
TWRPI Connectors J9 and J10
The two connectors J9 and J10 are 50 mil pin headers mounted on the front (component side) supporting
the standard TWRPI general purpose connector. The primary header J9 and secondary header J10 are
20-pin and mounted physically in such a manner as to prevent reverse insertion of any TWRPI card into
the motherboard receptacle (see
Figure 3-1., “TWR-KW2xDxxx Connector and Header Details”
).
•
V_MCU provides the TWRPI connector its supply voltage
— Depending on power supply configuration, this voltage may supply the TWRPI card from the
TWR-KW2xDxxx. See
Section 3.2.3, “Power Management”
.
— Peripherals IO to the TWR-KW2xDxxx and the TWRPI card supply should use this same
voltage avoiding potential damage.
The pin definitions for the primary header J9 and the secondary header J10 are shown in
Table 3-3.,
“TWRPI 20 Pin Primary Connector”
and
Table 3-4., “TWRPI 20 Pin Secondary Connector”
respectively.
Table 3-3. TWRPI 20 Pin Primary Connector
Header
Pin
Number
TWR-MKW24D512 Pin Name
Description
1
5V_ELEV
5V VDD supply to board
2
V_MCU
3V3 VDD supply to board
3
GND
Module ground
4
V_MCU
3V3 VDD supply to board
5
GND
VSS (GND) board ground
6
GND
VSS (GND) board ground
7
GND
VSS (GND) board ground
8
PTE0_TWRPI
ADC: Analog 0
9
PTD1
ADC: Analog 1
10
GND
VSS (GND) board ground
11
GND
VSS (GND) board ground
