RS5C348A_95 Просмотр технического описания (PDF) - RICOH Co.,Ltd.

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RS5C348A_95

4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICS WITH VOLTAGE MONITORING FUNCTION

RICOH Co.,Ltd. 

R×5C348A/B

2.1-3 CLEN2 (R×5C348A)

32kHz Clock Output Bit 2

CLEN2 (R×5C348A)

Description

0

Enabling the 32-kHz clock circuit

1

Disabling the 32-kHz clock circuit

(Default setting)

For the R×5C348A, setting the CLEN2 bit or the CLEN1 bit (D3 in the control register 2) to 0 specifies generating

clock pulses with the oscillation frequency of the 32.768-kHz crystal oscillator for output from the 32KOUT pin.

Conversely, setting both the CLEN1 and the CLEN2 bit to 1 specifies disabling (“H”) such output.

SCRATCH3 (R×5C348B)

Scratch Bit 3

SCRATCH3 (R×5C348B)

0

1

Description

(Default setting)

For the R×5C348B, this bit is intended for scratching and accepts the reading and writing of 0 and 1. The

SCRATCH3 bit will be set to 0 when the XSTP bit is set to 1 in Control Register 2.

2.1-4 TEST

TEST

0

1

Test Bit

Normal operation mode

Test mode

Settings

The TEST bit is used only for testing in the factory and should normally be set to 0.

(Default setting)

11

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