SH7708 Datasheet, PDF (331/625 Pages) Renesas Technology Corp – SuperH™ RISC engine

12.1.3 Pin Configuration
Table 12.1 shows the RTC pin configuration.
Table 12.1RTC Pin Configuration
Pin
AbbreviationI/O Description
RTC oscillator crystal pin
EXTAL2
I Connects crystal to RTC oscillator
RTC oscillator crystal pin
XTAL2
O Connects crystal to RTC oscillator
Clock input/clock output
TCLK
I/O External clock input pin/input capture
control input pin/realtime clock (RTC)
output pin (shared by TMU)
Dedicated power-supply pin for RTC Vcc (RTC) — Dedicated power-supply pin for RTC*
Dedicated GND pin for RTC
Vss (RTC) — Dedicated GND pin for RTC*
Note: Power must be supplied to the RTC power supply pins even when the RTC is not used.
Except in hardware standby mode, power must be supplied to all power supply pins,
including these, even if only the RTC is used.
317