MAX34461EVKIT# Maxim Integrated, MAX34461EVKIT# Datasheet - Page 32

• Manufacturer Part Number: MAX34461EVKIT#
• Description: Power Management IC Development Tools MAX34461 Eval Kit
• Manufacturer: Maxim Integrated
• Type: Voltage Detectorsr

Specifications of MAX34461EVKIT#

• Rohs: yes
• Product: Evaluation Kits
• Tool Is For Evaluation Of: MAX34461
• Input Voltage: 3 V to 3.6 V
• Output Voltage: 3 V to 3.6 V
• Interface Type: USB
• Part # Aliases: 90-34461#EVK

The STORE_DEFAULT_ALL command instructs the
device to transfer the complete device configuration
information to the internal flash memory array. Not all
information is stored; only configuration data is stored,
not any status or operational data. If an error occurs
during the transfer, ALERT asserts if enabled and the
CML bit in and STATUS_WORD is set to 1. No bits are set
in STATUS_CML. This command is write-only. There is no
data byte for this command. Note: It is not recommended
to use the STORE_DEFAULT_ALL command while the
device is operating power supplies. The device is unre-
sponsive to PMBus commands and does not monitor
power supplies while transferring the configuration. If the
device configuration needs to be stored to flash while
the device is operating the power supplies, it should be
done one configuration parameter at a time using the
MFR_STORE_SINGLE command.
USER NOTE: V
perform the STORE_DEFAULT_ALL command.
MFR_STORE_SINGLE is a read/write word command
that instructs the device to transfer a single configu-
ration parameter to the internal flash memory array.
The upper byte contains the PAGE and the lower byte
contains the PMBus command that should be stored.
For example, if the TON_DELAY parameter for the
power supply controlled by PAGE 4 needs to be stored
to flash, 0460h would be written with this command.
When read, this command reports the last single PAGE/
command written to flash. This command can be used
while the device is operating the power supplies. If an
error occurs during the transfer, ALERT asserts if enabled
and the CML bit in STATUS_WORD is set to 1. No bits are
set in STATUS_CML. Note: The MFR_STORE_SINGLE
command should only be invoked a maximum of 85
times before either a device reset is issued or a device
power cycle occurs, or the RESTORE_DEFAULT_ALL
command is invoked. Also, MFR_STORE_SINGLE should
Table 11. CAPABILITY Command Byte
Maxim Integrated
PMBus 16-Channel Voltage Monitor and Sequencer
BIT
6:5
3:0
7
4
Packet-error checking
DD
DESCRIPTION
PMBus speed
must be above 2.9V for the device to
Reserved
ALERT
STORE_DEFAULT_ALL (11h)
MFR_STORE_SINGLE (FCh)
0 = PEC not supported.
01 = Maximum supported bus speed is 400kHz.
1 = Device supports an ALERT output (if ALERT is enabled in MFR_MODE).
0 = Device does not support ALERT output (ALERT is disabled in MFR_MODE).
Always returns 0000.
not be used for commands that are not stored in flash.
See
flash.
USER NOTE: V
perform the MFR_STORE_SINGLE command.
The RESTORE_DEFAULT_ALL command transfers the
default configuration information from the internal flash
memory array to the user memory registers in the device.
The RESTORE_DEFAULT_ALL command should only be
executed when the device is not operating the power
supplies. Upon a device power-on reset or any device
reset, this command is automatically executed by the
device without PMBus action required. This command is
write-only. There is no data byte for this command.
The CAPABILITY command is used to determine some
key capabilities of the device. The CAPABILITY com-
mand is read-only. The message content is described
in
The VOUT_MODE command is used to report the data
format of the device. The device uses the DIRECT format
for all the voltage-related commands. The value returned
is 40h, indicating DIRECT data format. This command is
read-only. If a host attempts to write this command, the
CML status bit is asserted. See
R values for the various commands.
The VOUT_MARGIN_HIGH command loads the device
with the voltage to which the power-supply output is to
be changed when the OPERATION command is set to
margin high. If the power supply is already operating
at margin high, changing VOUT_MARGIN_HIGH has
no effect on the output voltage. The device only adjusts
the power supply to the new VOUT_MARGIN_HIGH
voltage after receiving a new margin-high OPERATION
Table
Table 1
11.
MEANING
for a list of commands that are stored in
DD
RESTORE_DEFAULT_ALL (12h)
must be above 2.9V for the device to
VOUT_MARGIN_HIGH (25h)
Table 3
MAX34461
VOUT_MODE (20h)
CAPABILITY (19h)
for the m, b, and
32