datasheetbank_Logo     Технический паспорт Поисковая и бесплатно техническое описание Скачать

BQ24153 Просмотр технического описания (PDF) - Texas Instruments

Номер в каталогеКомпоненты Описаниепроизводитель
BQ24153 Fully Integrated Switch-Mode One-Cell Li-Ion Charger With Full USB Compliance and USB-OTG Support TI
Texas Instruments TI
BQ24153 Datasheet PDF : 41 Pages
First Prev 21 22 23 24 25 26 27 28 29 30 Next Last
www.ti.com
bq24153
bq24156, bq24158
SLUSA27 – MARCH 2010
I2C Update Sequence
The IC requires a start condition, a valid I2C address, a register address byte, and a data byte for a single
update. After the receipt of each byte, the IC acknowledges by pulling the SDA line low during the high period of
a single clock pulse. A valid I2C address selects the IC. The IC performs an update on the falling edge of the
acknowledge signal that follows the LSB byte.
For the first update, the IC requires a start condition, a valid I2C address, a register address byte, a data byte.
For all consecutive updates, The IC needs a register address byte, and a data byte. Once a stop condition is
received, the IC releases the I2C bus, and awaits a new start conditions.
S SLAVE ADDRESS
R/W
‘0’ (Write)
A REGISTER ADDRESS A DATA
Data Transferred
(n Bytes + Acknowledge)
A/A P
From master to IC
From IC to master
A = Acknowledge (SDA LOW)
A = Not acknowledge (SDA
HIGH)
S = START condition
Sr = Repeated START condition
P = STOP condition
(a) F/S-Mode
F/S-Mode
HS-Mode
F/S-Mode
S HS-MASTER CODE
A Sr SLAVE ADDRESS R/W
‘0’ (write)
A REGISTER ADDRESS A DATA
Data Transferred
(n Bytes + Acknowledge)
A/A P
HS-Mode
Continues
(b) HS- Mode
Figure 34. Data Transfer Format in F/S Mode and H/S Mode
Sr Slave A.
Slave Address Byte
MSB
LSB
X
1
1
0
1
0
1
1
The slave address byte is the first byte received following the START condition from the master device.
Register Address Byte
MSB
LSB
0
0
0
0
0
D2
D1
D0
Following the successful acknowledgment of the slave address, the bus master will send a byte to the IC, which
contains the address of the register to be accessed. The IC contains five 8-bit registers accessible via a
bidirectional I2C-bus interface. Among them, four internal registers have read and write access; and one has only
read access.
Copyright © 2010, Texas Instruments Incorporated
Submit Documentation Feedback
27
Product Folder Link(s): bq24153 bq24156 bq24158
Direct download click here

 

Share Link : 

All Rights Reserved © datasheetbank.com 2014 - 2019 [ политика конфиденциальности ] [ Запрос Даташит ]