MAX1385BETM+ Maxim Integrated Products, MAX1385BETM+ Datasheet - Page 41

• Manufacturer Part Number: MAX1385BETM+
• Description: RF Wireless Misc IC CTRLR LDMOS BIAS 5V
• Manufacturer: Maxim Integrated Products

Specifications of MAX1385BETM+

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

The MAX1385/MAX1386 use read and write command
bytes (see Figure 15). The command byte consists of 8
bits and contains the address of the register. The com-
mand byte also communicates to the device whether a
read or write operation occurs. See the Register
Description section for details on how to access specif-
ic registers through the command byte.
Data bytes are clocked in/out of the device with the
MSB first and the LSB last (see Figure 16). See the
Register Description section for a description of data
bytes for each register.
One data bit is transferred during each SCL clock
cycle. The data on SDA must remain stable during the
high period of the SCL clock pulse. Changes in SDA
Table 25. RDFLAG (Read)
BIT NAME
FIFOOVER
ADCBUSY
ALUBUSY
FIFOEMP
HIGHT2
HIGHT1
HIGHI2
LOWT2
HIGHI1
LOWT1
LOWI2
LOWI1
X
______________________________________________________________________________________
DATA BIT
D15– D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
POR
X
0
1
0
0
0
0
0
0
0
0
0
0
Dual RF LDMOS Bias Controllers
Command Byte
Don’t care
1 = ADC is busy
0 = ADC is not busy
1 = ALU is busy
0 = ALU is not busy
1 = FIFO is empty
0 = FIFO is not empty
1 = FIFO overflowed
0 = FIFO not overflowed
1 = Channel 2 high current threshold exceeded
0 = Channel 2 high current threshold not exceeded
1 = Channel 2 low current threshold surpassed
0 = Channel 2 low current threshold not surpassed
1 = Channel 2 high temperature threshold exceeded
0 = Channel 2 high temperature threshold not exceeded
1 = Channel 2 low temperature threshold surpassed
0 = Channel 2 low temperature threshold not surpassed
1 = Channel 1 high current threshold exceeded
0 = Channel 1 high current threshold not exceeded
1 = Channel 1 low current threshold surpassed
0 = Channel 1 low current threshold not surpassed
1 = Channel 1 high temperature threshold exceeded
0 = Channel 1 high temperature threshold not exceeded
1 = Channel 1 low temperature threshold surpassed
0 = Channel 1 low temperature threshold not surpassed
Bit Transfer
Data Bytes
while SCL is high and stable are considered control
signals (see the START and STOP Conditions section).
Both SDA and SCL remain high when the bus is not
active. The interface can support fast (400kHz) and
high-speed (1.7MHz or 3.4MHz) data-transfer modes.
The master initiates a transmission with a START condi-
tion (S), which is a high-to-low transition on SDA while
SCL is high. The master terminates a transmission with
a STOP condition (P), which is a low-to-high transition
on SDA while SCL is high (Figure 17). A repeated
START condition (Sr) can be used in place of a STOP
condition to leave the bus active and the interface
transfer speed unchanged (see the Fast/High-Speed
Modes section).
with I
FUNCTION
2
C/SPI Interface
START and STOP Conditions
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