NXP Semiconductors S32R274 - 3.3. RS232 configuration

Configuration
S32R274/372 EVB User Guide, Rev. 0, 08/2018
NXP Semiconductors 9
Jumper
Label
Description
J33
CAN-PWR
1-2: 5.0V_SR to PHY U2 V
CC
3-4: 12V to PHY U2 V
BAT
J34
-
PHY U2 signal out
1: ERR
2: INH
J21
CAN_EN
PHY U1 configuration
1-2: WAKE to GND
3-4: STB to 5V
5-6: EN to 5V
J35
CAN
1-2: 5.0V_SR to PHY U1 V
CC
3-4: 12V to PHY U1 V
BAT
J37
CAN
PHY U1 TX to MCU
1-2: TTCAN TX
2-3: MCAN1 TX
J38
-
PHY U1 RX to MCU
1-2: TTCAN RX
2-3: MCAN1 RX
J36
-
PHY U1 signal out
1: ERR
2: INH
3.3. RS232 configuration
Female DB9 connector J19 and MAX3221E RS232 transceiver device provide a physical RS232
interface, allowing a direct RS232 connection to a PC or terminal.
The pin-out of these connectors is detailed in Figure 7. Note that hardware flow control is not supported
on this implementation.
Figure 7. RS232 physical interface connector
On default the RS232 interface is not enabled. To enable the RS232 interface the user needs to place the
jumpers detailed in Table 4.