
CHAPTER
4
P
O
RT
FU
NCTI
O
NS
User’s
Manual
U1
7790EJ2V0UD
189
Table 4-19. Using Port Pin as Alternate-Function Pin (2/9)
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)
TIP01
Input
P33 = Setting not required
PM33 = Setting not required
PMC33 = 1
PFCE33 = 0
PFC33 = 0
TOP01
Output
P33 = Setting not required
PM33 = Setting not required
PMC33 = 1
PFCE33 = 0
PFC33 = 1
P33
CTXD1
Note 1
Output
P33 = Setting not required
PM33 = Setting not required
PMC33 = 1
PFCE33 = 1
PFC33 = 0
TIP10
Input
P34 = Setting not required
PM34 = Setting not required
PMC34 = 1
PFCE34 = 0
PFC34 = 0
TOP10
Input
P34 = Setting not required
PM34 = Setting not required
PMC34 = 1
PFCE34 = 0
PFC34 = 1
P34
CRXD1
Note 1
Input
P34 = Setting not required
PM34 = Setting not required
PMC34 = 1
PFCE34 = 1
PFC34 = 0
TIP11
Input
P35 = Setting not required
PM35 = Setting not required
PMC35 = 1
PFC35 = 0
P35
TOP11
Output
P35 = Setting not required
PM35 = Setting not required
PMC35 = 1
PFC35 = 1
CTXD0
Note 2
Output
P36 = Setting not required
PM36 = Setting not required
PMC36 = 1
PFC36 = 0
P36
IETX0
Output
P36 = Setting not required
PM36 = Setting not required
PMC36 = 1
PFC36 = 1
CRXD0
Note 2
Input
P37 = Setting not required
PM37 = Setting not required
PMC37 = 1
PFC37 = 0
P37
IERX0
Input
P37 = Setting not required
PM37 = Setting not required
PMC37 = 1
PFC37 = 1
TXDA2
Output
P38 = Setting not required
PM38 = Setting not required
PMC38 = 1
PFC38 = 0
P38
SDA00
I/O
P38 = Setting not required
PM38 = Setting not required
PMC38 = 1
PFC38 = 1
PF38 (PF3) = 1
RXDA2
Input
P39 = Setting not required
PM39 = Setting not required
PMC39 = 1
PFC39 = 0
P39
SCL00
I/O
P39 = Setting not required
PM39 = Setting not required
PMC39 = 1
PFC39 = 1
PF39 (PF3) = 1
SIB0
Input
P40 = Setting not required
PM40 = Setting not required
PMC40 = 1
PFC40 = 0
P40
SDA01
I/O
P40 = Setting not required
PM40 = Setting not required
PMC40 = 1
PFC40 = 1
PF40 (PF4) = 1
SOB0
Output
P41 = Setting not required
PM41 = Setting not required
PMC41 = 1
PFC41 = 0
P41
SCL01
I/O
P41 = Setting not required
PM41 = Setting not required
PMC41 = 1
PFC41 = 1
PF41 (PF4) = 1
P42
SCKB0
I/O
P42 = Setting not required
PM42 = Setting not required
PMC42 = 1
Notes 1. CAN controller (2-channel) version only
2. CAN controller version only