RL78/F13, F14 CHAPTER 4 PORT FUNCTIONS
R01UH0368EJ0210 Rev.2.10 246
Dec 10, 2015
4.2.6 Port 6
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). Input to the P62 and P63 pins can be specified through a normal input buffer or a TTL input buffer
in 1-bit units using port input mode register 6 (PIM6). When the P60 to P67 pins are used as an input port, use of an on-
chip pull-up resistor can be specified in 1-bit units by pull-up resistor option register 6 (PU6).
Output from the P60 to P63 pins can be specified as N-ch open-drain output (EV
DD tolerance) in 1-bit units using port
output mode register 6 (POM6).
For the P60 to P63 pin input, the threshold of the input buffer can be specified in 1-bit units using the port input
threshold control register 6 (PITHL6)
This port can also be used for serial interface data I/O and clock I/O, slave select input, timer I/O, and SNOOZE status
output.
Reset signal generation sets this port to input mode.
Table 4-10. Settings of Registers When Using Port 6 (1/2)
Pin Name PM6x PIM6x POM6x PITHL6x Alternate Function Setting
Note 6
Remark
Name I/O
P60 Input 1 – × 0 × CMOS input
(Schmitt1 input)
1 CMOS input
(Schmitt3 input)
Output 0 – 0 × (SCK00/SCL00 output = 1)
Note 1
CMOS output
1 × N-ch O.D output
P61 Input 1 – × 0 × CMOS input
(Schmitt1 input)
1 CMOS input
(Schmitt3 input)
Output 0 – 0 × SDA00 output = 1
Note 2
CMOS output
1 × N-ch O.D output
P62 Input 1 0 × 0 × CMOS input
(Schmitt1 input)
1 CMOS input
(Schmitt3 input)
1 × × × TTL input
Output 0 × 0 × SCLA0 output = 0
Note 3
(SO00/TXD0 output = 1)
Note 2
CMOS output
1 × N-ch O.D output
(Notes and Remark are listed on the next page.)
To Next Page
Loading...
Need help?
General
