3850SA datasheet(5/9 Pages) RENESAS

5 / 9 page

REJ99B0047-0100

-5-

Reserved

Serial I/O2/INT3 interrupt source selection bit

003A16 bit4

–

Port P0P1P2 pull-up control register

001216

–

Analog input selection register

003716

Reserved

Serial I/O2 register

001716

Reserved

Serial I/O2 control register2

001616

Reserved

Serial I/O2 control register1

001516

–

Port P4 pull-up control register

001416

–

Port P3 pull-up control register

001316

Standard Version

Spec.A

Address

Additional Registers in Spec.A

Notes on converting Standard ver. into Spec.A (1)

There are additional registers in Spec.A as following table. These are used for

additional function in Spec.A, software pull-up resister,Serial I/O2 and

an increase of analog input pin number .

When not using the additional functions in Spec.A, take the following (1) or (2)

(1) Don’t write any data to the additional registers(or bit). (Keep the initial state

after releasing Reset)

(2) Write the initial state to the additional registers(or bit) after releasing Reset

• If in the program for Standard ver. any data have been not written to the addresses

corresponding to the Spec.A’s additional registers, this program can be used for

Spec.A as it is (not requiring to change program codes).

3850SA Datasheet(PDF) 5 Page - Renesas Technology Corp