upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 74

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

Chapter 2
74
Register
PM1
PMC1
P1
PPR1
PDSC1
PICC1
PODC1
Table 2-25
Address
FFFF F422
FFFF F442
FFFF F402
FFFF F3C2
FFFF F302
FFFF F382
FFFF F362
Access
2.4.5 Port group 1
Note
H
H
H
H
H
H
H
Port group 1 is a 2-bit port group. In alternative mode, it comprises pins for the
following functions:
• I
Port group 1 includes the following pins:
a)
Alternative input functions SDA0 and SCL0 are provided on two pins each.
Thus you can select on which pin the alternative function should appear. If
alternative functions SDA0/SCL0 are used at P16/17 make sure to set also
PFSR0.PFSR04 = 0.
Refer to “Alternative input selection“ on page 50.
Port group 1: configuration registers
All 8-bit registers can be accessed in 8-bit or 1-bit units.
Preliminary User’s Manual U17566EE1V2UM00
P16 (I/O)
P17 (I/O)
Initial
value
FF
00
00
00
00
00
00
(PMCnm = 0)
Port mode
2
H
H
H
H
H
H
H
C0 data/clock line (SDA0/SCL0)
In I
(PODC1.PODC16 = 1 and PODC1.PODC17 = 1). Thus output function is enabled
automatically, although PMnm = 1.
2
C function mode open drain emulation has to be enabled
Pin functions in different modes
Used bits
PM17
PMC17
P17
PPR17
PDSC17
PICC17
PODC17
Table 2-24
SDA0
SCL0
Output mode
(PMnm = 0)
PM16
PMC16
P16
PPR16
PDSC16
PICC16
PODC16
a
a
Port group 1: pin functions and port types
Alternative mode
(PMCnm = 1)
X
X
X
X
X
X
X
SDA0
SCL0
Input mode
(PMnm = 1)
X
X
X
X
X
X
X
X
X
X
X
X
X
X
P16 (I)
P17 (I)
Pin function
after reset
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Pin Functions
Port type
X
X
X
X
X
X
X
M
M