DS1683_12 Datasheet, PDF (14/21 Pages) Maxim Integrated Products – Total-Elapsed-Time and Event Recorder with Alarm

DS1683
Total-Elapsed-Time and Event Recorder with Alarm
REGISTERS 12h–15h: ETC ALARM LIMIT REGISTER
Factory Default
Read Access
Write Access
Memory Type
00 00 00 00h
All
PW
Shadowed EEPROM, Nonvolatile
Memory
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Access
12h
2⁷
2⁶
2⁵
2⁴
2³
2²
2¹
2⁰
13h
2¹⁵
2¹⁴
2¹³
2¹²
2¹¹
2¹⁰
2⁹
2⁸
14h
2²³
2²²
2²¹
2²⁰
2¹⁹
2¹⁸
2¹⁷
2¹⁶
15h
2³¹
2³⁰
2²⁹
2²⁸
2²⁷
2²⁶
2²⁵
2²⁴
BIT 7
BIT 0
The ETC Alarm Limit is a shadowed EEPROM, and when the ETC register value equals or exceeds the ETC Alarm Limit value,
the ETC flag bit (ETC AF bit, Register 01h, bit 0) goes active high. When the ETC register value drops below the ETC Alarm Limit
value, the EVENT AF bit automatically clears.
REGISTER 16h: CONFIGURATION REGISTER
Factory Default /Power-On Value 00h
Read Access
All
Write Access
PW
Memory Type
Shadowed EEPROM, Nonvolatile
Memory
Access
N/A
01h Reserved
BIT 7
N/A
Reserved
N/A
Reserved
R/W
Reserved
R/W
Reserved
R/W
ETC ALRM
EN
R/W
EVENT
ALRM EN
R/W
ALRM POL
BIT 0
7:3
Reserved Reserved
2
ETC ALRM
EN
Default value = 0, which is disabled. When set to a 1, and if the ETC register is equal to or greater
than the ETC Alarm limit, then this device triggers the ETC Alarm Flag (ETC AF), and the ALARM pin
goes to its active state.
1
EVENT
ALRM EN
Default value = 0, which is disabled. When set to a 1, and if the Event Counter register is equal to
or greater than the Event Counter Alarm limit, then this device triggers the Event Counter Alarm Flag
(EVENT AF), and the ALARM pin goes to its active state.
0
ALRM POL
Default value = 0, which sets the ALARM output active low. When set to a 1, the ALARM output is
active high.
Maxim Integrated
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