UPD78F1502AGK-GAK-AX Datasheet, PDF (166/1031 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcontrollers

78K0R/Lx3
CHAPTER 4 PORT FUNCTIONS
4.2.7 Port 6
<R>
P60/SCL0
P61/SDA0
78K0R/LF3
(80 pins: μ PD78F15x0A,
78F1501A, 78F15x2A)
−
−
78K0R/LG3
78K0R/LH3
(100 pins: μ PD78F15x3A, (128 pins: μ PD78F15x6A,
78F1504A, 78F15x5A)
78F1507A, 78F15x8A)
√
√
Port 6 is an I/O port with an output latch. Port 6 can be set to the input mode or output mode in 1-bit units using port
mode register 6 (PM6).
The output is N-ch open-drain output (6 V tolerance).
This port can also be used for serial interface data I/O and clock I/O.
Reset signal generation sets port 6 to input mode.
Figure 4-15 shows a block diagram of port 6.
Caution When using P60/SCL0 and P61/SDA0 as a general-purpose port, stop the operation of serial interface
IICA.
Figure 4-15. Block Diagram of P60 and P61
Alternate
function
RD
WRPORT
WRPM
P6
Output latch
(P60, P61)
PM6
PM60, PM61
Alternate
function
P6: Port register 6
PM6: Port mode register 6
RD: Read signal
WR××: Write signal
P60/SCL0,
P61/SDA0
R01UH0004EJ0501 Rev.5.01
150
Jun 20, 2011