Rs232 Configuration - NXP Semiconductors S32R274 EVB User Manual

Jumper
J35
J37
J38
J36
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.
On default the RS232 interface is not enabled. To enable the RS232 interface the user needs to place the
jumpers detailed in Table 4
Jumper
J13
J14
J25
Label
CAN
CAN
-
-
Figure 7.
Figure 7. RS232 physical interface connector
.
Table 4. RS232 control jumpers
Label
SCI TX
SCI RX
SCI_PWR
S32R274 EVB User Guide
Description
1-2: 5.0V_SR to PHY U1 V
3-4: 12V to PHY U1 V
BAT
PHY U1 TX to MCU
1-2: TTCAN TX
2-3: MCAN1 TX
PHY U1 RX to MCU
1-2: TTCAN RX
2-3: MCAN1 RX
PHY U1 signal out
1: ERR
2: INH
Description
TX enable
RX enable
Transceiver power on
CC
10