Chapter 7
I/O Port
Port 3 VII - 43
7.7 Port 3
The following table shows the special functions of Port 3.
Table:7.7.1 Port 3
* The assignment and selection of SEGn differ in each product.
For details, refer to [Table:1.2.3 Functions of LCD Control] and [17.2.2 LCD Port Control Registers].
7.7.1 Setup of Port 3
Table:7.7.2 P30 Function Selection
*1 When serial data is output, set the P3DIR.P3DIR0 to "1".
*2 When serial data is input and output, set the bit to "1".
pin Special function
P30 SEG35 (*) SBO1A TXD1A -
P31 SEG34 (*) SBT1A - -
P32 SEG33 (*) SBCS1A - -
P33 SEG32 (*) BUZA - -
P34 SEG31 (*) TM4IOA TM7IOB NBUZA
P35 SEG30 (*) SBI0B RXD0B -
P36 SEG29 (*) SBO0B TXD0B -
P37 SEG28 (*) SBT0B - -
Setup Function
Register LCCTR4 SC1MD1 SC01SEL
Bit name SEGSL35 SC1SBOS SC1SBIS SC1IOM SC1SEL1
1 - - - SEG35
0
1 (*1) - (*2) - (*2) 0
SBO1A/
TXD1A
0
110
00-P30
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