upd70f3422gj-gae-qs-ax Renesas Electronics Corporation., upd70f3422gj-gae-qs-ax Datasheet - Page 78

Manufacturer Part Number

upd70f3422gj-gae-qs-ax

32-bit Single-chip Microcontroller

Manufacturer

Renesas Electronics Corporation.

µPD70(F)3420, µPD70(F)3421, µPD70(F)3422, µPD70F3423 only

2.4.8 Port group 4

µPD70(F)3420, µPD70(F)3421, µPD70(F)3422, µPD70F3423 only

Port group 4 is an 8-bit port group. In alternative mode, it comprises pins for

the following functions:

• Clocked Serial Interface CSIB0 data/clock line (SIB0, SOB0, SCKB0)

• Clocked Serial Interface CSIB1 data/clock line (SIB1, SOB1, SCKB1)

• LCD controller segment signal output (SEG20 to SEG22) (µPD70(F)3420,

• CAN0 transmit/receive data (CTXD0, CRXD0)

Port group 4 includes the following pins:

Port group 4: pin functions and port types

The alternative input function of CSIB0 isprovided on two pins. Thus you can

select on which pin the alternative function should appear.

Refer to “Alternative input selection“ on page 50.

Port group 4: configuration registers

All 8-bit registers can be accessed in 8-bit or 1-bit units.

Preliminary User’s Manual U17566EE1V2UM00

µPD70(F)3421, µPD70(F)3422, µPD70F3423 only)

Pin functions in different modes

Alternative mode

(PLCDCnm = 1)

Pin function

Pin Functions