Toshiba TMP91C815F Data Book page 79

7
PC
bit Symbol
(0023H)
Read/Write
After Reset
7
PCCR
bit Symbol
(0026H)
Read/Write
After Reset
7
bit Symbol
PCFC
(0027H)
Read/Write
After Reset
Function
7
bit Symbol
PCODE
(0028H)
Read/Write
After Reset
Function
(note1): Read-Modify-Write is prohibited for the registers PCCR, PCFC and PCODE.
(note2): PC1/RXD0, PC4/RXD1 pins do not have a register changing PORT/FUNCTION. For example,
when it is used as an input port, the input signal is inputted to SIO as the cereal receive data.
Port C Register
6 5 4
PC5 PC4
1 1
Port C Control Register
6 5 4
PC5C PC4C
0 0
0: IN 1: OUT
Port C Functon Register
6 5 4
PC5F
W
0
0: PORT
1:
SCLK1
Output
Port C ODE Register
6 5 4
Figure 3.5.27 Register for Port C
91C815-76
3 2 1
PC3 PC2 PC1
R/W
Input mode
1 1 1
3 2 1
PC3C PC2C PC1C
W
0 0 0
3 2 1
PC3F PC2F
W W
0 0
0: PORT 0: PORT
1: 1:
TXD1 SCLK0
Out put
3 2 1
ODEPC3
W
0
TXD1
0: CMOS
1:
Open
Drain
TMP91C815
0
PC0
1
0
PC0C
0
0
PC0F
W
0
0: PORT
1:
TXD0
0
ODEPC0
W
0
TXD0
0: CMOS
1:
Open
Drain