Fout Function (Clock Output Function); Fout Control Register; Fout Function Table - Epson RX8111CE Applications Manual

RX8111CE

5) VCMP bit

User can monitor the status of VCMP during the period that battery is being recharged.

VCMP

Read

6) VLOW bit

User can monitor the result of VLOW (battery backup lower voltage) .

VLOW

Read

The clock signal can be output via the FOUT pin. In case of inactive pin output becomes Hi-Z.

Address

1Dh

FOUT pin can be terminated as wake-up timer too. When FOUT function is needed, TMPIN should be "0" and /INT pin should be

wake-up timer interrupt output.

1) FSEL1,FSEL0 bit

FSEL1

At the time of the initial power-on, "0" is set to FSEL1, FSEL0.

Note: The effect of STOP bit to FOUT functions.

When STOP = "1", 32.768 kHz and 1024 Hz output is possible.

But 1 Hz output is disabled.

Data

Description

0

V

< V

BAT

1

V

> V

BAT

Data

Description

0

V

> V

BAT

1

V

< V

BAT

Table 42 FOUT control register

Function

Extension Register

FSEL0

0

0

0

1

1

0

1

1

Table 40 VCMP bit (VCMP)

Recharging

DD

Recharging suspended SW2:OFF

DD

Table 41 VLOW bit (VLOW)

LOW

LOW

bit 7

bit 6

bit 5

FSEL1 FSEL0

USEL

Table 43 FSEL register

Output

32.768 kHz Output

1024 Hz Output

1 Hz Output

OFF

Page − 35

bit 4

bit 3

bit 2

TE

WADA

ETS

bit 1

bit 0

TSEL1 TSEL0

ETM61E-01