EM3027 Datasheet, PDF (14/28 Pages) EM Microelectronic - MARIN SA – Real Time Clock with I2C or SPI, Crystal Temperature Compensation, Battery Switchover and Trickle Charger

R
EM3027
Transmission Start
CS
SCK
SI
SO
R/W A6 A5 _{A4 A3 A2} A1 _{A0 D7 D6}
HiZ
Figure 3: SPI Write Transmission
Transmission Stop
D1 D0
Transmission Start
CS
SCK
SI
SO
R/W ^{A6 A5} A4 A3 A2 ^A1 A0
HiZ
D7 D6
Figure 4: SPI Read Transmission
Transmission Stop
HiZ
D1 D0
Copyright © 2009, EM Microelectronic-Marin SA
14
12/09 – rev D
www.emmicroelectronic.com