
CHAPTER
4
P
O
RT
FU
NCTI
O
NS
188
User’s
Manual
U1
7790EJ2V0UD
Table 4-19. Using Port Pin as Alternate-Function Pin (1/9)
Alternate Function
Pin Name
Name
I/O
Pnx Bit of
Pn Register
PMnx Bit of
PMn Register
PMCnx Bit of
PMCn Register
PFCEnx Bit of
PFCEn Register
PFCnx Bit of
PFCn Register
Other Bits
(Registers)
TIP61
Input
P00 = Setting not required
PM00 = Setting not required
PMC00 = 1
PFC00 = 0
P00
TOP61
Output
P00 = Setting not required
PM00 = Setting not required
PMC00 = 1
PFC00 = 1
TIP60
Input
P01 = Setting not required
PM01 = Setting not required
PMC01 = 1
PFC01 = 0
P01
TOP60
Output
P01 = Setting not required
PM01 = Setting not required
PMC01 = 1
PFC01 = 1
P02
NMI
Input
P02 = Setting not required
PM02 = Setting not required
PMC02 = 1
INTP0
Input
P03 = Setting not required
PM03 = Setting not required
PMC03 = 1
PFC03 = 0
P03
ADTRG
Input
P03 = Setting not required
PM03 = Setting not required
PMC03 = 1
PFC03 = 1
P04
INTP1
Input
P04 = Setting not required
PM04 = Setting not required
PMC04 = 1
INTP2
Input
P05 = Setting not required
PM05 = Setting not required
PMC05 = 1
P05
DRST
Input
P05 = Setting not required
PM05 = Setting not required
PMC05 = Setting not required
OCDM0 (OCDM) = 1
P06
INTP3
Input
P06 = Setting not required
PM06 = Setting not required
PMC06 = 1
P10
ANO0
Output
P10 = Setting not required
PM10 = 1
P11
ANO1
Output
P11 = Setting not required
PM11 = 1
TXDA0
Output
P30 = Setting not required
PM30 = Setting not required
PMC30 = 1
PFC30 = 0
P30
SOB4
Output
P30 = Setting not required
PM30 = Setting not required
PMC30 = 1
PFC30 = 1
RXDA0
Input
P31 = Setting not required
PM31 = Setting not required
PMC31 = 1
Note, PFC31 = 0
INTP7
Input
P31 = Setting not required
PM31 = Setting not required
PMC31 = 1
Note, PFC31 = 0
P31
SIB4
Input
P31 = Setting not required
PM31 = Setting not required
PMC31 = 1
PFC31 = 1
ASCKA0
Input
P32 = Setting not required
PM32 = Setting not required
PMC32 = 1
PFCE32 = 0
PFC32 = 0
SCKB4
I/O
P32 = Setting not required
PM32 = Setting not required
PMC32 = 1
PFCE32 = 0
PFC32 = 1
TIP00
Input
P32 = Setting not required
PM32 = Setting not required
PMC32 = 1
PFCE32 = 1
PFC32 = 0
P32
TOP00
Output
P32 = Setting not required
PM32 = Setting not required
PMC32 = 1
PFCE32 = 1
PFC32 = 1
Note
The INTP7 pin and RXDA0 pin are alternate-function pins. When using the pin as the RXDA0 pin, disable edge detection for the INTP7 alternate-function pin.
(Clear the INTF3.INTF31 bit and the INRT3.INTR31 bit to 0.) When using the pin as the INTP7 pin, stop UARTA0 reception. (Clear the UA0CTL0.UA0RXE bit
to 0.)
Caution
Between the P10 and P11 pins, when one pin is used as the I/O port, and the other pin is used as the D/A output pin (ANO0, ANO1), make sure
that the port I/O level does not change during D/A output.