upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 75

• Manufacturer Part Number: upd70f3422gj-gae-qs-ax
• Description: 32-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

a)
Pin Functions
Register Address
PM2
PMC2
PLCDC2
P2
PPR2
PDSC2
PICC2
PODC2
µPD70(F)3420, µPD70(F)3421, µPD70(F)3422, µPD70F3423 only
a
FFFF F424
FFFF F444
FFFF F344
FFFF F404
FFFF F3C4
FFFF F304
FFFF F384
FFFF F364
Table 2-26
Table 2-27
a)
b)
P20 (I/O)
P21 (I/O)
P22 (I/O)
P23 (I/O)
P24 (I/O)
P25 (I/O)
P26 (I/O)
P27 (I/O)
(PMCnm = 0)
Access
Port mode
2.4.6 Port group 2
Note
µPD70(F)3420, µPD70(F)3421, µPD70(F)3422, µPD70F3423 only
In I
PODC2.PODC21 = 1). Thus output function is enabled automatically, although PMnm = 1.
H
H
H
H
H
H
H
H
2
C function mode open drain emulation has to be enabled (PODC2.PODC20 = 1 and
Initial
value
FF
00
00
00
00
00
00
00
Port group 2 is an 8-bit port group. In alternative mode, it comprises pins for
the following functions:
• Timer TMG0 to TMG1 channels (TIG02 to TIG04, TIG11 to TIG14)
• I
• LCD controller segment signal output (SEG0 to SEG7) (µPD70(F)3420,
Port group 2 includes the following pins:
Port group 2: pin functions and port types
Alternative input functions of I
each. Thus you can select on which pin the alternative function should appear.
If alternative functions SDA1/SCL1 are used at P20/21 make sure to set also
PFSR0.PFSR05 = 0.
Refer to “Alternative input selection“ on page 50.
Port group 2: Configuration registers
All 8-bit registers can be accessed in 8-bit or 1-bit units.
Preliminary User’s Manual U17566EE1V2UM00
H
H
H
H
H
H
H
H
µPD70(F)3421, µPD70(F)3422, µPD70F3423 only)
2
SDA1
SCL1
–
–
–
–
–
–
C1 data/clock line (SDA1, SCL1)
Pin functions in different modes
Output mode
Used bits
PM27
PMC27
PLCDC27
P27
PPR27
PDSC27
PICC27
PODC27
(PMnm = 0)
b
b
Alternative mode
(PMCnm = 1)
PM26
PMC26
PLCDC26
P26
PPR26
PDSC26
PICC26
PODC26
TIG03
TIG04
TIG11
TIG12
TIG13
TIG14
SDA1
TIG02/SCL1
Input mode
(PMnm = 1)
PM25
PMC25
PLCDC25
P25
PPR25
PDSC25
PICC25
PODC25
2
C1 (SDA1, SCL1) are provided on two pins
PM24
PMC24
PLCDC24
P24
PPR24
PDSC24
PICC24
PODC24
SEG0
SEG1
SEG2
SEG3
SEG4
SEG5
SEG6
SEG7
(PLCDCnm = 1)
LCD mode
a
a
a
a
a
a
a
a
PM23
PMC23
PLCDC23
P23
PPR23
PDSC23
PICC23
PODC23
a
PM22
PMC22
PLCDC22
P22
PPR22
PDSC22
PICC22
PODC22
P20 (I)
P21 (I)
P22 (I)
P23 (I)
P24 (I)
P25 (I)
P26 (I)
P27 (I)
Pin function
after reset
PM21
PMC21
PLCDC21
P21
PPR21
PDSC21
PICC21
PODC21
Chapter 2
Port type
PM20
PMC20
PLCDC20
P20
PPR20
PDSC20
PICC20
PODC20
M
M
M
M
M
M
M
M
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