MAX34461EVKIT# Maxim Integrated, MAX34461EVKIT# Datasheet - Page 20

• 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 device supports the group command. With the group
command, a host can write different data to multiple
devices on the same serial bus with one long continuous
The device responds to receiving its fixed slave address
by asserting an acknowledge (ACK) on the bus. The
device does not respond to a general call address; it only
responds when it receives its fixed slave address or the
alert response address (ARA). See the
Response Address (ARA)
If the ALERT output is enabled (ALERT bit = 1 in
MFR_MODE), when a fault occurs the device asserts the
ALERT signal and then waits for the host to send an ARA,
Maxim Integrated
PMBus 16-Channel Voltage Monitor and Sequencer
ALERT and Alert Response Address (ARA)
SLAVE ADDRESS, COMMAND BYTE, AND DATA WORD FOR DEVICE 1
SLAVE ADDRESS, COMMAND BYTE, AND DATA BYTE FOR DEVICE 2
SLAVE ADDRESS AND SEND BYTE FOR DEVICE 3
U U U
SLAVE ADDRESS, COMMAND BYTE, AND DATA WORD FOR DEVICE N
Sr
Sr
Sr
S
1
1
1
1
ADDRESS
ADDRESS
ADDRESS
ADDRESS
SLAVE
SLAVE
SLAVE
SLAVE
7
7
7
7
W
W
W
W
1
1
1
1
section for more details.
A
1
A
A
A
1
1
1
COMMAND
COMMAND
COMMAND
COMMAND
Group Command
CODE
CODE
CODE
CODE
8
8
8
8
ALERT and Alert
Addressing
A
A
A
A
1
1
1
1
DATA BYTE
DATA BYTE
DATA BYTE
LOW
LOW
U U U
8
8
8
data stream. All the devices addressed during this trans-
action wait for the host to issue a STOP before beginning
to respond to the command.
as shown in the
Format
When the ARA is received and the device is asserting
ALERT, the device ACKs it and then attempts to place
its fixed slave address on the bus by arbitrating the
bus, since another device could also try to respond to
the ARA. The rules of arbitration state that the lowest
address device wins. If the device wins the arbitration, it
deasserts ALERT. If the device loses arbitration, it keeps
ALERT asserted and waits for the host to once again
send the ARA.
A
1
A
1
1
A
DATA BYTE
DATA BYTE
HIGH
section.
HIGH
U U U
8
8
A
1
1
A
Alert Response Address (ARA) Byte
KEY:
S = START
Sr = REPEATED START
P = STOP
W = WRITE BIT (0)
A = ACKNOWLEDGE (0)
SHADED BLOCK = SLAVE TRANSACTION
P
1
Group Command Write Format
U U U
MAX34461
20