MAX16046ECB+T Maxim Integrated Products, MAX16046ECB+T Datasheet - Page 48
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MAX16046ECB+T
Manufacturer Part Number
MAX16046ECB+T
Description
IC EE-PROG SYS MGR 12CH 64-TQFP
Manufacturer
Maxim Integrated Products
Type
System Managerr
Datasheet
1.MAX16046EVKIT.pdf
(70 pages)
Specifications of MAX16046ECB+T
Number Of Voltages Monitored
12
Output
Open Drain, Push-Pull
Reset
Active Low
Reset Timeout
Adjustable/Selectable
Voltage - Threshold
Adjustable/Selectable
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
64-TQFP Exposed Pad, 64-eTQFP, 64-HTQFP, 64-VQFP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
When r4Dh[3] is ‘1’ the watchdog timer operates in the
independent mode. In the independent mode, the
watchdog timer operates as if it were a separate chip.
The watchdog timer is activated immediately upon V
exceeding UVLO and once the boot-up sequence is
finished. If RESET is asserted by the sequencer state
machine, the watchdog timer and WDO will not be
affected.
There will be a long startup delay if r55h[6] is a ‘1.’ If
r55h[6] is a ‘0,’ there will not be a long startup delay.
In independent mode, if the Watchdog Reset Output
Enable bit r55h[7] is set to ‘1,’ when the watchdog timer
expires, WDO will be asserted then RESET will be
asserted. WDO will then be deasserted. WDO will be
12-Channel/8-Channel EEPROM-Programmable
System Managers with Nonvolatile Fault Registers
Table 30. Miscellaneous Settings
48
REGISTER/
ADDRESS
______________________________________________________________________________________
EEPROM
5Ch
5Dh
65h
Independent Watchdog Timer Operation
BIT RANGE
[7:0]
[7:2]
[2:0]
[7:3]
[0]
[1]
User identification. Eight bits of memory for user-defined identification.
Configuration Lock
0 = Configuration registers and EEPROM writable.
1 = Configuration registers and EEPROM [except r5Dh] locked.
EEPROM Fault Data Lock Flag (set automatically after fault log is triggered):
0 = EEPROM is not locked. A triggered fault log stores fault information to EEPROM.
1 = EEPROM addresses 00h to 11h are locked. Write a ‘1’ to this bit to toggle the flag.
Not used
Manufacturing revision code. This register is read only. Not stored in EEPROM.
Not used
CC
low for 3 system clock cycles or approximately 1µs. If
the Watchdog Reset Output Enable bit (r55h[7]) is set
to ‘0,’ when the WDT expires, WDO will be asserted but
RESET will not be affected.
Table 30 lists several miscellaneous programmable
items. Register r5Ch provides storage space for a user-
defined configuration or firmware version number. Bit
r5Dh[0] locks and unlocks the configuration registers.
Bit r5Dh[1] locks and unlocks EEPROM addresses 00h
to 11h. Write data to EEPROM r5Dh as normally done;
however, to toggle a bit in register r5Dh, write a ‘1’ to
that bit. The r65h[2:0] bits contain a read-only manufac-
turing revision code.
DESCRIPTION
Miscellaneous