Garz & Fricke SANTOKA core Product Manual page 32

Keypad/SPI/I²C, multiplexed 1*
1
Pin
2
1-10
11 *1
12 *1
13
14
15
16
17
18
19
20
*1 If Option HDMI is populated:
not usable as keypad row 4 and keypad column 4 (mode 2 / mode 3)
I²C2 is shared with I²C at HMDI
Pull-Ups of about 2kOhm to 3.3V existing on I²C signals.
* alternative assembly upon request
Name
KP_ROW4
KP_COL4
KP_ROW5_DMA
KP_COL5_SS1
KP_ROW6_MISO
KP_COL6_MOSI
KP_ROW7_SLK
KP_COL7_SS0
Aux_Out
OPTION: KEYPAD
Description Description
Mode 2 Mode 3
Identical to standard Identical to standard
Keypad row 4 Keypad row 4
Keypad column 4 Keypad column 4
Keypad row 5 SPI Interrupt Request
Keypad column 5 SPI Slave Select 1
Keypad row 6 SPI Master in Slave out
Keypad column 6 SPI Master out Slave in
Keypad row 7 SPI Serial Clock
Keypad column 7 SPI Slave Select 0
500 mA (can be controlled by software)
PRODUCT MANUAL
SANTOKA core
Level
3.3 V
5.0 V
Place close to X21
Keypad-I/F Keypad SPI I2C
Pin3 ROW2 SS2
Pin4 GPIO4_20
Pin5 GPIO4_17
Pin6 GPIO4_18
Pin7 GPIO4_19
Pin8 GPIO4_16
Pin9 GPIO4_21
Pin10 GPIO1_19
Pin11 ROW3 SDA
Pin12 COL3 SS3 SCL
Pin13 GPIO4_5 RDY
Pin14 COL2 SS1
Pin15 COL1 MISO
Pin16 ROW0 MOSI
Pin17 COL0 SCLK
Pin18 ROW1 SS0
not usable as GPIO if HDMI is populated
PWM USB RESET
USB_DP
RESET_IN#
USB_DN
PWM2
3 2