Datasheet

17Maxim Integrated
Low-Current SPI/3-Wire RTCs
DS1343/DS1344
Figure 4. SPI Single-Byte Write
Figure 5. SPI Single-Byte Read
Figure 6. SPI Multibyte Burst Transfer
D0D1D2D3D4D5D6D7A0A1A2A3A4A5A61
CE
SCLK*
SDI
SDO
HIGH-Z
*SCLK CAN BE EITHER POLARITY.
SERMODE = V
CC
.
R/W
A0A1A2A3A4A5A60
CE
SCLK*
SDI
SDO
HIGH-Z
D7 D6 D5 D4 D3 D2 D1 D0
*SCLK CAN BE EITHER POLARITY.
SERMODE = V
CC
.
R/W
ADDRESS
BYTE
DATA
BYTE 0
DATA
BYTE 1
DATA
BYTE N
ADDRESS
BYTE
CE
SCLK
SDI
SDI
SDO
WRITE
READ
DATA
BYTE 0
DATA
BYTE 1
DATA
BYTE N