Datasheet

MAX11014/MAX11015
Automatic RF MESFET Amplifier
Drain-Current Controllers
______________________________________________________________________________________ 31
Command Byte
Begin a write or read to the MAX11014/MAX11015 by
writing a command byte at DIN/SDA. Set bit C7 to 1 for
a read operation. Set bit C7 to 0 for a write operation.
See Table 1. The remaining bits, C6–C0, determine the
register accessed by the command byte. Table 2 indi-
cates the register’s read/write access. C7 is the MSB of
the command byte and C0 is the LSB. Following the
command byte, write or read 2 data bytes to/from bits
D15–D0. D15 is the MSB of the 2 data bytes and D0 is
the LSB. See Figures 9, 10, 17, 18, and 19 and the
Register Descriptions section.
SCL
SDA
D7 D6 D5 D4 D3 D2 D1 D0
NACK
INOUT
P
S = START.
ACK = ACKNOWLEDGE.
NACK = NOT ACKNOWLEDGE.
P = STOP.
SDA
DIRECTION
SCL
SDA
SDA
DIRECTION
A6 A5 A4 A3 A2 A1 A0 R/W ACK
IN IN
C6 C5 C4 C3 C2 C1 C0 ACK
S
R/W
OUT, DATA FROM LAST READ COMMAND BYTE REGISTER
Figure 19. MAX11014/MAX11015 I
2
C Default Read Timing
24-BIT SERIAL INPUT WORD
COMMAND BYTE DATA BITS
MSB
LSB
C7
R/W
C6 C5 C4 C3 C2 C1 C0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1
D0
Table 1. Input Command Bits