Epson RX4111CE - RTC Self Monitoring Time Stamp Function; Time Stamp Record Register; Table 57 Time Stamp RAM Control Registers; Table 58 VDET Bit (VDET)

14. How to use

RX4111CE Jump to Top / Bottom
ETM62E-02 Seiko Epson Corporation 47
Table 57 Time Stamp RAM control registers
Bank3
Address[h]
Function
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
4
Time Stamp
Control 1
z
z
z
z
z
EISEL
TSCLR
TSRAM
5
Time Stamp
Control 2

z
z
z

EVDET

EXST
6
Time Stamp
Control 3
z
z
z
TSFUL
TSEMP
TSDA2
TSDA1
TSDA0
14.8.5. RTC Self Monitoring Time stamp Function
1) VDET bit (Time Stamp VDET)




Table 58 VDET bit (VDET)
VDET
Data
Description
Read
0
V
DD
> V
DET1
, Normal mode (V
DD
supply)
1
V
DD
< V
DET1
, Backup mode (V
BAT
supply)
2) XST bit (Time stamp Crystal Oscillation Stop)

Table 59 XST bit (Crystal Oscillation Stop)
XST
Data
Description
Read
0

1


The time stamp cannot be recorded at the moment of oscillation stop. It is recorded at the moment the oscillation
restores.
3) EVDET bit (Enable VDET)

Table 60 EDVET bit (Enable VDET)
EVDET
Data
Description
Write
0
No time stamp even VDET is detected.
1
Time stamp by VDET detection.
4) EXST bit (Enable Time stamp Crystal Oscillation Stop)

Table 61 EXST bit
EXST
Data
Description
Read
0

1

14.8.6. Time Stamp Record Register

Table 62 Time Stamp RAM control registers
Bank3
Address
Function
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
4h
Time Stamp
Control 1
z
z
z
z
z
EISEL
TSCLR
TSRAM
5h
Time Stamp
Control 2

z
z
z

EVDET

EXST