15 port ua pin assignment register (puapar), 15 port ua pin assignment register (puapar) -26, The puapar controls the pin function of port ua – Motorola ColdFire MCF5281 User Manual
Page 526
General Purpose I/O Module
26-26
Freescale Semiconductor
26.3.2.15 Port UA Pin Assignment Register (PUAPAR)
The PUAPAR controls the pin function of port UA.
Table 26-18. PTDPAR Field Descriptions
Bits
Name
Description
7–6
PTDPA3
Port TD pin assignment 3. This field configures the port TD3 pin for its primary function
(DTIN1), alternate 1 function (URTS1), alternate 2 function (URTS0) or digital I/O.
00 Port TD3 pin configured for digital I/O
01 Port TD3 pin configured for alternate 2 function (URTS0)
10 Port TD3 pin configured for alternate 1 function (URTS1)
11 Port TD3 pin configured for primary function (DTIN1)
5-4
PTDPA2
Port TD pin assignment 2. This field configures the port TD2 pin for its primary function
(DTOUT1), alternate 1 function (URTS1), alternate 2 function (URTS0) or digital I/O.
00 Port TD2 pin configured for digital I/O
01 Port TD2 pin configured for alternate 2 function (URTS0)
10 Port TD2 pin configured for alternate 1 function (URTS1)
11 Port TD2 pin configured for primary function (DTOUT1)
3-2
PTDPA1
Port TD pin assignment 1. This field configures the port TD1 pin for its primary function
(DTIN0), alternate 1 function (UCTS1), alternate 2 function (UCTS0) or digital I/O.
00 Port TD1 pin configured for digital I/O
01 Port TD1 pin configured for alternate 2 function (UCTS0)
10 Port TD1 pin configured for alternate 1 function (UCTS1)
11 Port TD1 pin configured for primary function (DTIN0)
1-0
PTDPA0
Port TD pin assignment 0. This field configures the port TD0 pin for its primary function
(DTOUT0), alternate 1 function (UCTS1), alternate 2 function (UCTS0) or digital I/O.
00 Port TD0 pin configured for digital I/O
01 Port TD0 pin configured for alternate 2 function (UCTS0)
10 Port TD0 pin configured for alternate 1 function (UCTS1)
11 Port TD0 pin configured for primary function (DTOUT0)
7
4
3
2
1
0
Field
—
PUAPA3
PUAPA2
PUAPA1
PUAPA0
Reset
0000_0000
R/W:
R
R/W
Address
IPSBAR + 0x10_005C
Figure 26-29. Port UA Pin Assignment Register (PUAPAR)
Table 26-19. PUAPAR Field Descriptions
Bits
Name
Description
7–4
—
Reserved, should be cleared.
3
PUAPA3
Port UA pin assignment 3. This bit configures the port UA3 pin for its primary function
(URXD1) or digital I/O.
1 Port UA3 pin configured for primary function (URXD1)
0 Port UA3 pin configured for digital I/O
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3