73M1866B-IMR/F Maxim Integrated Products, 73M1866B-IMR/F Datasheet - Page 35
73M1866B-IMR/F
Manufacturer Part Number
73M1866B-IMR/F
Description
MICRODAA SGL PCM HIGHWAY 42-QFN
Manufacturer
Maxim Integrated Products
Series
MicroDAA™r
Specifications of 73M1866B-IMR/F
Includes
PCM Highway
Function
Data Access Arrangement (DAA)
Interface
PCM, Serial, SPI
Number Of Circuits
1
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Package / Case
42-VFQFN Exposed Pad
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Supply
-
Power (watts)
-
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DS_1x66B_001
In 16-bit mode, the first frame of 16 bits contains both the control and address bytes, and the second
frame contains the data bytes. Note that the second part of the second frame is irrelevant. Figure 18 and
Figure 19 show the write and read transactions in 16-bit mode.
The transaction diagrams show the case where SCLK is only active during the transaction frames. The
same transaction remains valid even if SCLK runs continuously, regardless of frame boundaries.
The SPI state machine resets when the host sends a frame containing a number of SCLK periods
different from a multiple of eight:
Rev. 1.6
SCLK
SCLK
SDO
SDO
SDI
CS
SDI
CS
SCLK
SDO
CS
SDI
CONTROL
CONTROL
CONTROL
Figure 18: SPI Write Transaction – 16-bit Mode
Figure 19: SPI Read Transaction – 16-bit Mode
Figure 17: SPI Read Transaction – 8-bit Mode
ADDRESS
ADDRESS
HI-Z
HI-Z
ADDRESS
DATA[15:8]
XXXXXXXX
DATA[7:0]
HI-Z
73M1866B/73M1966B Data Sheet
DATA [7:0]
DATA [7:0]
XXXXXXXX
DATA[7:0]
XXXXXXXX
35
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