MAX11068EVKIT+ Maxim Integrated Products, MAX11068EVKIT+ Datasheet - Page 57

• Manufacturer Part Number: MAX11068EVKIT+
• Description: KIT SMART BATT MEASUREMENT 12CH
• Manufacturer: Maxim Integrated Products

Specifications of MAX11068EVKIT+

• Main Purpose: Power Management, Battery Monitor, Car
• Utilized Ic / Part: MAX11068
• Primary Attributes: Monitors Current, Voltage, Temperature
• Secondary Attributes: 1 ~ 12 Cell- Li-Ion, 1 ~ 12 Cell- NiMH
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Embedded: -

The following conventions are used in the description of
the I
Binary values are prefixed with the notation 0b, e.g.,
0b11101000.
Hexadecimal values are prefixed by the notation 0x,
e.g., 0xE8.
In the timing diagrams, standard I
been used:
The diagrams also represent the direction of SDA by
shading the data when the slave is the data source. For
example, when the I
the data bits and receives the acknowledge bit. So, the
data bits have a clear background and the acknowledge
bit is shaded. When the I
Table 36. I
U S represents a START condition (pulls SDA low while
U P represents a STOP condition (pulls SDA high while
U Sr represents a repeated START condition. This is
U A represents a positive acknowledge (ACK). The
U N represents a negative acknowledge (NACK). The
U W represents the R/Wb bit set low for a write transac-
U R represents the R/Wb bit set high for a read transac-
U X represents a don’t-care value for a data bit.
U N.C. represents an I
Broadcast Address
(default value)
HELLOALL
WRITEDEVICE
SCL is high).
SCL is high).
identical to a START condition except that it has not
followed a STOP condition.
data receiver drives the SDA line low.
data receiver drives the SDA line high.
tion.
tion.
2
C command protocols.
I
2
C ADDRESS BIT
2
C Address Byte Encoding
12-Channel, High-Voltage Sensor, Smart
2
Protocol Descriptions
C master performs a write, it sends
2
C link that is a no connect.
2
C master performs a read, it
I
2
C Command
2
C notations have
B7
Conventions
7
0
1
1
B6
6
1
1
0
Data-Acquisition Interface
B5
A0
A0
5
0
receives the data bits and sends the acknowledge bit.
So, the data bits have a shaded background and the
acknowledge bit is clear.
All commands begin with an I
ately following a START or repeated START condition.
Each MAX11068 responds to the following bytes after a
START condition:
The format for these bytes is shown in Table 36.
The broadcast address is an address value to which
all enabled devices respond. This address is used for
ROLLCALL, WRITEALL, and READALL commands. The
broadcast address B[7:0] is programmable through the
BRDCST bits of the BROADCAST ADDRESS register
(address 0x0F), but B[0] is not used since it falls in
the position of the I
address is 0x40. The I
not supported and the MAX11068 does not respond to
messages sent to that address unless the BRDCST bits
are set to this value.
The device address is unique to each part within the
chain of devices. This address is used during HELLOALL
and WRITEDEVICE commands, and is essential in deter-
mining which device is the last in the SMBus ladder. The
HELLOALL command sets the address of all de-vices by
initializing the address of the first device in the chain and
autoincrementing the addresses of remaining devices
up the chain. When the MAX11068 is not used on a
dedicated I
not be configured to use addresses with a 1 as the MSB.
The broadcast address must also be chosen to avoid
conflicts with the HELLOALL and WRITEDEVICE com-
mands, as well as any other devices on the bus.
U Broadcast address
U WRITEDEVICE command containing the device
U HELLOALL command
address
B4
A1
A1
4
0
2
C bus, the other devices on the bus should
B3
A2
A2
3
0
2
C R/Wb bit. The default broadcast
2
C general-call address 0x00 is
Address Byte Encoding
A3
B2
A3
2
0
2
C address byte immedi-
B1
A4
A4
1
0
R/Wb
1/0
1/0
0
0
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