51
Pin Functions
Chapter 2
Preliminary User’s Manual U17566EE1V2UM00
(2)
PFSR3 - Peripheral function select register
The 8-bit PFSR3 register selects the alternative input paths for the peripheral
functions UARTA0 and UARTA1.
Access
This register can be read/written in 8-bit units.
Address
FFFF F726
H
Initial Value
01
H
. This register is initialized by any reset.
7
6
5
4
3
2
1
0
0
a
a)
These bits must not be changed!
0
a
PFSR35 PFSR34
0
a
0
a
0
a
1
a
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 2-17
PFSR3 register contents
Bit position
Bit name
Function
5
PFSR35
Specifies the alternative input path for UARTA1:
0: RXDA1 is input from P33 (RXDA1_0)
1: RXDA1 is input from P56 (RXDA1_1)
4
PFSR34
Specifies the alternative input path for UARTA0:
0: RXDA0 is input from P31 (RXDA0_0)
1: RXDA0 is input from P87 (RXDA0_1)
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