T1023
UART1
CTS
RXD
TXD
SP3232
DO
DO
DI
DI
RX
TX
RTS
UART2
CTS
RXD
TXD
RTS
CTS
RXD
TXD
RTS
RX
TX
P1 TOP
Figure 2-14. RS-232 ports connection
The below table shows the connection settings for the UART RJ-45 connector to the DB9
female cable connection.
Table 2-8. RJ45 to DB9 connection settings
RJ-45 pin number
RS-232 signal
DB9 female pin number
1
RTS
8
2
NC
3
TXD
2
4
GND
5
5
GND
5
6
RXD
3
7
NC
8
CTS
7
2.21 POR configuration
The POR configuration is based on switch setting. When Power-on reset (POR) is
asserted, the RCW source POR configuration input are sampled to determine the
configuration source. Then the device starts loading the RCW data. Negate the POR
when the required assertion or hold time is met (the minimum value is 1 ms). On this
board, MAX811 asserts the POR for 110 ms.
POR configuration
QorIQ T1023 Reference Design Board User Guide, Rev. 0, 08/2015
26
Freescale Semiconductor, Inc.
Содержание QorIQ T1023
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