Datasheet

ManualsBrandsRENESAS ManualsMicrocontrollers, Microprocessors & QuartzesEmbedded microcontroller LQFP 64 (10x10) 16-Bit 16 MHz I/O number 29

Section 9 I/O Ports

Rev. 6.00 Mar. 24, 2006 Page 123 of 412

REJ09B0142-0600

• P21/RXD Pin

Register SCR3 PCR2

Bit Name RE PCR21 Pin Function

Setting Value 0 0 P21 input pin

1 P21 output pin

1 X RXD input pin

[Legend]

X: Don't care.

• P20/SCK3 Pin

Register SCR3 SMR PCR2

Bit Name CKE1 CKE0 COM PCR20 Pin Function

Setting Value 0 0 0 0 P20 input pin

1 P20 output pin

0 0 1 X SCK3 output pin

0 1 X X SCK3 output pin

1 X X X SCK3 input pin

[Legend]

X: Don't care.