Rainbow Electronics MAX781 - Manual (Page 12)

MAX781
PDA/Hand-Held Computer Power Controller
12 ______________________________________________________________________________________
CE
OUTPUT FROM CPU
INPUT TO MAX781
SCLK
TIME
OUTPUT FROM CPU
INPUT TO MAX781
DATA CLOCKED INTO MAX781
ON RISING EDGE OF SCLK
DATA CLOCKED OUT OF MAX781
ON FALLING EDGE OF SCLK
DIN
OUTPUT FROM CPU
INPUT TO MAX781
BATTSTAT BATTINT 3VINT
BATTINT 3VINT VPPA1 VPPA0
XXX XXX XXX DOUT
INPUT TO CPU
OUTPUT FROM MAX781
CE
SCLK
DIN
DOUT
t CSO t CSS
t CH
t CSH
t CSW
t CS1
t TR
t CP
t DH
t CL
t DO t DV
t DS
• • •
• • •
• • •
• • •
CE
SCLK
TIME
DIN
BATTSTAT 3VSTAT CHGINT CHGSTAT BATTINT 3VINT
CHARGE MODE1 MODE0 IDLE VPPA1 VPPB0 VPPB1 VPPA0
XXX XXX XXX DOUT
Figure 3. Serial Configuration Data Example Timing
Figure 4. Detailed Timing Diagram
Figure 5. Quick-Access Example Timing