Rainbow Electronics MAX16064 - Manual (Page 44)

MAX16064
±0.3% Accurate, Quad, Power-Supply Controller with
Active-Voltage Output Control and PMBus Interface
44 ______________________________________________________________________________________
Table 16. MFR_MODE Bit Definition
BIT BIT NAME DESCRIPTION
15:8
Input Clock Time
Factor
This is equivalent to the number of external clock cycles provided to CLKIO in 100_S - 2.
MFR_MODE[15:8] = f
EXT_CLK /10kHz - 2 where f EXT_CLK is the frequency of the external clock. For
example, when f EXT_CLK = 1MHz, f EXT_CLK /10kHz = 100, MFR_MODE[15:8] = 100 – 2 = 98. Valid
external input clock range is from 100kHz (MFR_MODE[15:8] = 8) to 2.5MHz (MFR_MODE[15:8] =
248).
These bits are ignored if internal clock source is selected as the time base (Clock Source Select bit =
0).
7
Clock Out
Enable
The Clock Out Enable bit allows the output of a 1MHz reference clock to CLKIO for synchronizing
multiple MAX16064s.
1 = Enables the 1MHz output on CLKIO.
0 = Reference clock is not output (default).
6 IGNORE_EN
1 = The EN state is ignored and the MAX16064 is controlled according to ON_OFF_CONFIG.
0 = The MAX16064 turns on the external power supplies when EN exceeds its threshold. If EN goes
low after power-up, the MAX16064 turns off a power supply only if MFR_FAULT_RESPONSE[5:4] is
configured to do so.
5
EEPROM Lock
Enable
The EEPROM Lock Enable bit is used to protect external EEPROM data from being overwritten.
1 = The STORE_DEFAULT_ALL command is ignored. The RESTORE_DEFAULT_ALL command is still
valid.
0 = The STORE_DEFAULT_ALL command initiates a store configuration operation to the external
EEPROM attached to A1/SCLE and A2/SDAE (default).
4
Correction
Bypass Enable
Correction Bypass Enable.
1 = Disables a correction algorithm made to voltage and temperature readings.
0 = Applies a correction algorithm to temperature measurement, thus resulting in high-accuracy
readings. For optimal operation, this bit should be cleared to 0 (default).
3
EEPROM Fault
Lock
1 = EEPROM fault locations are locked. If a fault occurs, data is not written to the external EEPROM.
0 = EEPROM fault locations are unlocked. If a fault occurs, data is written to the external EEPROM.
2 PEC Enable
1 = PEC enabled for all commands.
0 = PEC is disabled (default).
1 Filter Setting
1 = Disable filtering of the voltage and temperature conversions.
0 = Enable filtering of the voltage and temperature conversions (default).
0
Clock Source
Select
The Clock Source Select bit determines the MAX16064 reference clock time source.
1 = An external clock must be supplied to CLKIO and is used as the MAX16064 reference clock.
0 = The internal clock is used.
MFR_MODE (D1h)
The MFR_MODE command is used to configure
the MAX16064 to support manufacturer specific
commands. The MFR_MODE command is described
in Table 16.
The default MFR_MODE value is 00h.