MS51
Nov. 28, 2019
Page
82
of 491
Rev 1.00
MS51
32K
SE
RIES
TE
CHNICAL RE
F
EREN
CE MA
N
UAL
AUXR3
– Auxiliary Register 3
Register
SFR Address
Reset Value
AUXR3
A2H, Page 2
0000_0000 b
7
6
5
4
3
2
1
0
UART4TXP
UART4RXP
UART3TXP
UART3RXP
R/W
R/W
R/W
R/W
Bit
Name
Description
7:6
UART4TXP
UART4 TX pin select
00 = Reserved by default
01 = Assign UART4 TX to P2.3
10 = Reserved
11 = Reserved
5:4
UART4RXP
UART4 RX pin select
00 = Reserved by default
01 = Assign UART4 RX to P2.2
10 = Reserved
11 = Reserved
3:2
UART3TXP
UART3 TX pin select
00 = Reserved by default
01 = Assign UART3 TX to P1.2
10 = Assign UART3 TX to P1.5
11 = Assign UART3 TX to P0.5
1:0
UART3RXP
UART3 RX pin select
00 = Reserved by default
01 = Assign UART3 RX to P1.1
10 = Assign UART3 RX to P2.5
11 = Assign UART3 RX to P3.4