TWR-K40X256 Freescale Semiconductor, TWR-K40X256 Datasheet - Page 18

• Manufacturer Part Number: TWR-K40X256
• Description: TOWER SYSTEM BOARD K40X256
• Manufacturer: Freescale Semiconductor
• Series: Kinetisr
• Type: MCUr

Specifications of TWR-K40X256

• Contents: Board
• Processor To Be Evaluated: K40
• Data Bus Width: 32 bit
• Interface Type: USB, CAN, I2C, SPI, UART
• Dimensions: 3.5 in x 3.2 in
• Operating Supply Voltage: 1.71 V to 3.6 V
• Silicon Manufacturer: Freescale
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M4
• Silicon Core Number: MK
• Silicon Family Name: Kinetis - K40
• Kit Contents: Board Only
• Rohs Compliant: Yes
• For Use With/related Products: Freescale Tower System, K40X256
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

5 Tower Elevator Connections
The TWR-K40X256 features two expansion card-edge connectors that interface to the Primary and
Secondary Elevator boards in a Tower system. The Primary Connector (comprised of sides A and B)
and Secondary Connector (comprised of sides C and D) are both utilized by the TWR-K40X256. Table 7
provides the pinout for the Primary Connector. Table 8 provides the pinout for the Secondary
Connector.
B10
B11
B12
B13
B14
B15
B16
B17
B18
B19
B20
B21
B22
B23
B24
B25
B26
B27
B28
B29
B30
B31
B32
B33
B34
B35
B36
B37
B38
B39
B40
B41
B42
B43
Pin
B1
B2
B3
B4
B5
B6
B7
B8
B9
#
SDHC_CMD / SPI1_MOSI
SDHC_D3 / SPI1_CS1_b
SDHC_D3 / SPI1_CS0_b
SDHC_D0 / SPI1_MISO
SDHC_CLK / SPI1_CLK
GPIO2 / SDHC_D1
ELE_PS_SENSE
GPIO1 / RTS1
ETH_TXCLK
ETH_RXER
ETH_TXEN
ETH_TXER
ETH_TXD3
ETH_TXD2
ETH_TXD1
ETH_TXD0
ETH_COL
CLKOUT1
CANRX0
CANTX0
CLKIN0
1WIRE
GPIO3
GPIO4
PWM7
PWM6
PWM5
PWM4
Name
TMR3
TMR2
DAC1
GND
3.3V
GND
GND
GND
GND
3.3V
AN7
AN6
AN5
AN4
5V
TWR-K40X256 Tower Module User's Manual
Side B
Table 7. TWR-K40X256 Primary Connector Pinout
TWRPI ID1 (J7 Pin 18)
5.0V Power
Ground
3.3V Power
Elevator Power Sense
Ground
Ground
PTE2
PTE4
PTE1
PTE3
PTC18
PTE0
PTE28
PTA18
PTE26
Ground
PTB0
PTB1
PTB2
PTB3
Ground
DAC1_OUT
PTC5
PTD6
PTB9
3.3V Power
PTA2
PTA1
PTD5
PTD4
PTE25
PTE24
Usage
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
A33
A34
A35
A36
A37
A38
A39
A40
A41
A42
A43
Pin
A1
A2
A3
A4
A5
A6
A7
A8
A9
#
GPIO7 / SD_WP_DET
―
GPIO8 / SDHC_D2
GPIO9 / CTS1
ETH_RXCLK
ETH_MDIO
ETH_RXDV
ETH_RXD3
ETH_RXD2
ETH_RXD1
ETH_RXD0
SSI_MCLK
ETH_MDC
SSI_BCLK
ETH_CRS
SSI_RXD
SSI_TXD
SSI_FS
GPIO6
PWM3
PWM2
PWM1
PWM0
Name
DAC0
TMR1
TMR0
RXD0
RXD1
GND
GND
GND
SDA0
GND
GND
TXD0
3.3V
3.3V
SCL0
3.3V
AN3
AN2
AN1
AN0
5V
ADC1_DM0/ADC0_DM3
5.0V Power
Ground
3.3V Power
3.3V Power
Ground
Ground
PTC10
PTC11
PTC19
PTE5
PTE27
PTA17
PTA14
PTA13
PTA15
PTA12
Ground
PGA0_DP/ADC0_DP0/ADC1_DP3
PGA0_DM/ADC0_DM0/ADC1_DM3
PGA1_DP/ADC1_DP0/ADC0_DP3
PGA1_DM/ADC1_DM0/ADC0_DM3
Ground
DAC0_OUT
PTA9
PTA8
PTB10
3.3V Power
PTC4
PTC3
PTC2
PTC1
PTC14
PTC15
PTC16
Side A
Page 18 of 21
Usage