upd70f3402 Renesas Electronics Corporation., upd70f3402 Datasheet - Page 404

• Manufacturer Part Number: upd70f3402
• Description: 32-/16-bit Single-chip Microcontroller With Can Interface
• Manufacturer: Renesas Electronics Corporation.

12.2 Configuration
UARTA consists of the following hardware:
Remark:
The pins of asynchronous serial interface A (UARTA) function alternately as port pins. For how to select
the alternate functions, refer to the description of registers in Chapter 4 Port Functions.
404
Register
Reception data input
Transmit data output
Baud rate clock input
Control register
RXDA0
RXDA1
TXDA0
TXDA1
ASCKA0
ASCKA1
n = 0 to 1
Pin Name Alternate-Function Pin
Item
Table 12-2: List of Pins of Asynchronous Serial Interface A
Chapter 12 Asynchronous Serial Interface A (UARTA)
P31/INTP7
P95
P30
P96
P32
P94/CS303
Table 12-1: Configuration of UARTA0 and UARTA1
UARTAn reception shift register
UARTAn reception data register (UAnRX)
UARTAn transmit shift register
UARTAn transmit data register (UAnTX)
2 (RXDA0, RXDA1)
2 (TXDA0, TXDA1)
2 (ASCKA0, ASCKA1)
UARTAn control register 0 to 2 (UAnCTL0 to UAnCTL2)
UARTAn option control register 0 (UAnOPT0)
UARTAn status register (UAnSTR)
User’s Manual U16702EE3V2UD00
Input
Output
Input
I/O
Baud rate clock input (UARTA1)
Serial receive data input (UARTA0)
Serial receive data input (UARTA1)
Serial transmit data output (UARTA0)
Serial transmit data output (UARTA1)
Baud rate clock input (UARTA0)
Configuration
Function