Sys Tec Electronic ECUcore-1021, Hardware Manual

Page: 16 / 30

SYS TEC electronic GmbH
L-1589e-04
Hardware Manual ECUcore-1021
Page 16/30
Classification: Release
Pin Name Voltage
domain Notes
A35 IFC_AD5 BVDD (3.3V)
A36 IFC_AD4 BVDD (3.3V)
A37 IFC_AD3 BVDD (3.3V)
A38 IFC_AD2 BVDD (3.3V)
A39 IFC_AD1 BVDD (3.3V)
A40 IFC_AD0 BVDD (3.3V)
A41 GND -
A42 USB1_TX_P -
A43 USB1_TX_M -
A44 USB1_RX_P -
A45 USB1_RX_M -
A46 USB1_DP -
A47 USB1_DM -
A48 USB1_VBUS USB_VBUS See CPU datasheet for interface
recommendation
A49 GPIO4_26 DVDD (3.3V)
A50 GPIO4_25 DVDD (3.3V)
A51 GND -
A52 GPIO4_24 DVDD (3.3V)
A53 GPIO4_23 DVDD (3.3V)
A54 SDHC_DAT3 EVDD (3.3V)
A55 SDHC_DAT2 EVDD (3.3V)
A56 SDHC_DAT1 EVDD (3.3V)
A57 SDHC_DAT0 EVDD (3.3V)
A58 SDHC_CLK EVDD (3.3V)
A59 SDHC_CMD EVDD (3.3V)
A60 GND -
A61 SDHC_WP/I2C2_SDA DVDD (3.3V) If configured as I2C interface signal this pin is
an open-drain signal and a pull-up resistor of
1k
Ω should be placed on this pin to 3V3.
A62 SDHC_/CD/I2C2_SCL DVDD (3.3V) If configured as I2C interface signal this pin is
an open-drain signal and a pull-up resistor of
1k
Ω should be placed on this pin to 3V3.
A63 VBAT - On-board RTC power supply pin
(2.0V … 3.6V)
A64 RTC_1V8 OVDD (1.8V) Internal pull-
down resistor (10kΩ)
A65 TA_BB_RTC_1V0 TA_BB_VDD
(1.0V) Internal pull-down re
sistor (10kΩ)
A66 /TA_TD_1V8 OVDD (1.8V) Tamper Detect input TA_TMP_DETECT_B
(Internal pull-up resistor of 1
kΩ)
A67 /TA_BB_TD_1V0 TA_BB_VDD
(1.0V) Low Power Tamper Detect
(TA_BB_TMP_DETECT_B) (Internal pull-up
resistor of 1
kΩ)
A68 /TEST_SEL_1V8 O1VDD (1.8V) Internal pull-
up resistor (1kΩ)
A69 THERM_/CRIT DVDD (3.3V) Open-drain output of CPU temperature sensor
to signal critical temperature values (Internal
pull-
up resistor (4.7kΩ) to 3.3V), see chap. 3.11
A70 GND -
A71 /EVT3_1V8 O1VDD (1.8V) Internal pull-up resistor of
10kΩ
A72 /EVT4_1V8 O1VDD (1.8V) Internal pull-up resistor of
10kΩ