UM_INAP375R Revision 1.2_A1
Inova Semiconductors Confidential
Page 10 of 37
User Manual
3.1.6 Connector and interface pin description
JP5
ISP UART Interface
Pin
Signal
Description
1
RXD1
Receive data for ISP
2
TXD1
Transmit data for ISP
3
GND
Signal ground
Table 3-1: ISP UART Interface
SV1
Power supply for extension boards
Pin
Signal
Description
1,3,5,7,9,
11,13,15,
17,19
GND
Signal ground
2,4
12V0
9V - 18V for extension board’s DC/DC converter
14,16
DCDC_3V9
3.9 V Supply for extension board’s 3.3V LDOs
18,20
DCDC_2V1
2.1 V Supply for extension board’s 1.8V LDOs
Table 3-2: Extension board supply
SV2
APIX2 I2C, SPI slave and GPIO interface
Pin
Signal
Description
2,4,6,8,10
,12,14,16
GND
Signal ground
1
AX_I2C_SCL
APIX2 I2C master interface
3
AX_I2C_SD
Table 3-3: APIX2 I2C, SPI slave and GPIO interface
