Renesas Stereo System SH7709S Manual De Usuario

Rev. 5.00, 09/03, page 409 of 760

Table 13.1 shows the RTC pin configuration.

RTC oscillator crystal pin

EXTAL2

I

Connects crystal to RTC oscillator

*

2

RTC oscillator crystal pin

XTAL2

O

Connects crystal to RTC oscillator

*

2

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

*

1

Dedicated GND pin for RTC

Vss–RTC

—

Dedicated GND pin for RTC

*

1

Notes: 1. Except in hardware standby mode, power must be supplied to all power supply pins,

including these, even when only the RTC is used (including standby mode).

2. When the RTC is not used, pull EXTAL2 up (to Vcc) and make no connection for

XTAL2.