STW4811M STMicroelectronics, STW4811M Datasheet - Page 21

• Manufacturer Part Number: STW4811M
• Description: Power Management For Multimedia Processors
• Manufacturer: STMicroelectronics

STw4811M/STw4811N
Table 3.
Table 4.
Table 5.
Figure 7.
Figure 8.
RegADR7
WRITE
SINGLE BYTE
WRITE
MULTI BYTE
START
AdrID6
RANDOM ADDR
READ
SINGLE BYTE
RANDOM ADDR
READ
MULTI BYTE
DATA7
SDA
USBSDA
SCL
USBSCL
b7
b7
b7
DEVICE ADDRESS
0 1 0 1 1 0 1 0
Device ID
Register address
Register data
I2C interface modes
Control interface: I2C format
Control interface: I2C timing
Stop
RegADR6
AdrID5
DATA6
START
START
START
b6
b6
b6
t
buf
ACK
DEVICE ADDRESS
0 1 0 1 1 0 1 0
DEVICE ADDRESS
0 1 0 1 1 0 1 0
DEVICE ADDRESS
0 1 0 1 1 0 1 0
REGn ADDRESS
Start
t
hd_sta
RegADR5
AdrID4
DATA5
b5
b5
b5
t
f
ACK
t
ACK
ACK
START
ACK
low
REGn ADDRESS
REGn ADDRESS
REGn ADDRESS
DEVICE ADDRESS
0 1 0 1 1 0 1 1
RegADR4
t
r
AdrID3
DATA4
b4
b4
b4
t
high
ACK
ACK
ACK
ACK
t
RegADR3
hd_dat
START
AdrID2
DATA3
REGn Data In
REGn Data In
Reg n Data Out
b3
b3
b3
DEVICE ADDRESS
0 1 0 1 1 0 1 1
t
su_dat
RegADR2
m+1 data bytes
t
ACK
su_sta
AdrID1
DATA2
m+1 data bytes
ACK
ACK
b2
b2
b2
Start repeated
STOP
ACK
t
ACK
hd_sta
REGn Data Out
ACK
Reg n + m Data Out
Functional description
RegADR1
REGn+m Data In
AdrID0
DATA1
b1
b1
b1
t
su_sto
NO ACK
NO ACK
RegADR0
Stop
STOP
ACK
DATA0
R/W
b0
b0
b0
STOP
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