upd70f3017ay Renesas Electronics Corporation., upd70f3017ay Datasheet - Page 46

• Manufacturer Part Number: upd70f3017ay
• Description: V850/sa1tm 32-/16-bit Single-chip Microcontroller
• Manufacturer: Renesas Electronics Corporation.

(3) P20 to P27 (Port 2) ··· 3-state I/O
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P20 to P27 constitute an 8-bit I/O port that can be set to input or output in 1-bit units.
P20 to P27 can also function as input or output pins for the serial interface, and input or output pins for the
timer/counter.
P21 and P22 can be selected as normal output or N-ch open-drain output.
(a) Port function
(b) Alternate functions
P20 to P27 can be set to input or output in 1-bit units using the port 2 mode register (PM2).
(i)
(ii) SO2 (Serial output 2) ··· output
(iii) SCK2 (Serial clock 2) ··· 3-state I/O
(iv) RXD1 (Receive data 1) ... input
(v) TXD1 (Transmit data 1) ... output
(vi) ASCK1 (Asynchronous serial clock 1) ... input
(vii) TI2 and TI3 (Timer input 2, 3) ... input
(viii) TO2 and TO3 (Timer output 2, 3) ... output
This is the serial receive data input pin of UART1.
This is the serial transmit data output pin of UART1.
This is the serial baud rate clock input pin of UART1.
These are the external count clock input pins for timer 2 and timer 3.
These are the pulse signal output pins for timer 2 and timer 3.
SI2 (Serial input 2) ··· input
This is the serial receive data input pin of CSI2.
This is the serial transmit data output pin of CSI2.
This is the serial clock I/O pin of CSI2.
CHAPTER 2 PIN FUNCTIONS
User’s Manual U12768EJ4V1UD