Rtc Self Monitoring Time Stamp Function; Time Stamp Record Register; Table 57 Time Stamp Ram Control Registers; Table 58 Vdet Bit (Vdet) - Epson RX4111CE Applications Manual

Table 57 Time Stamp RAM control registers

Bank3
Function
Address[h]
Time Stamp
4
Control 1
Time Stamp
5
Control 2
Time Stamp
6
Control 3

14.8.5. RTC Self Monitoring Time stamp Function

1) VDET bit (Time Stamp VDET)
Comparison result of V

Table 58 VDET bit (VDET)

VDET Data
Read
2) XST bit (Time stamp Crystal Oscillation Stop)
Status record of crystal oscillation

Table 59 XST bit (Crystal Oscillation Stop)

XST
Data
Read
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)
Enable/Disable control of time stamp VDET
Table 60 EDVET bit (Enable VDET)
EVDET
Data
Write
4) EXST bit (Enable Time stamp Crystal Oscillation Stop)
Enable/Disable control of time stamp XST
Table 61 EXST bit
EXST
Data
Read

14.8.6. Time Stamp Record Register

When an event is detected, the following data is recorded.
Table 62 Time Stamp RAM control registers
Bank3
Function
Address
Time Stamp
4h
Control 1
Time Stamp
5h
Control 2
RX4111CE
ETM62E-02
bit 7 bit 6
z z

z
z z
and V
DD DET1
0 V V , Normal mode (V
>
DD DET1
1 V < V , Backup mode (V
DD DET1
Crystal oscillation is normal.
0
Crystal oscillation stopped or temporarily stopped.
1
XST detects more than 10ms stopped.
0 No time stamp even VDET is detected.
1 Time stamp by VDET detection.
No time stamp even Crystal oscillation stops.
0
Time stamp by Crystal oscillation stop detection.
1
bit 7 bit 6
z z

z
Seiko Epson Corporation
bit 5 bit 4
z z
z z
z
TSFUL
Description
supply)
DD
supply)
BAT
Description
Description
Description
bit 5 bit 4 bit 3
z z z
▲
z z
14. How to use
bit 3 bit 2 bit 1
z EISEL TSCLR
▲ ▲
EVDET
TSEMP TSDA2 TSDA1
bit 2 bit 1 bit 0
EISEL TSCLR TSRAM
▲
EVDET EXST
Jump to Top
47

bit 0
TSRAM
EXST
TSDA0
/ Bottom