MSM6782-01 Просмотр технического описания (PDF) - Oki Electric Industry

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MSM6782-01

Real time clock

Oki Electric Industry 

MSM6782-01

¡ Semiconductor

• MASK

“1” of the MASK bit inhibits the setting of “1” to the IRQ-F flag and sets the STD.P output to

the high impedance state.

Interrupt mode (INT/STND=”1")

"1"

"1"

MASK bit

STD.P output

"0"

"0"

No interrupt is generated because

of MASK bit="1".

High impedance

"L" level

"1"

IRQ-F

"0"

IRQ-F is read out.

Interrupt timing

Periodic timing waveform output mode (INT/STND=”0")

"1"

"1"

MASK bit

STD.P output

"0"

"0"

No "L" level is output because

of MASK bit ="1".

High impedance

"L" level

"1"

IRQ-F

"0"

Output timing

Auto-return

(duration of "L" is about 7.8ms)

When the IRQ-F bit is read out before auto-return, the IRQ-F bit goes to “0”, and the STD.P

output keeps “L” level for about 7.8ms, then goes into the high impedance state.

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