ATTINY88-MUR Atmel, ATTINY88-MUR Datasheet - Page 141
ATTINY88-MUR
Manufacturer Part Number
ATTINY88-MUR
Description
MCU AVR 8KB FLASH 12MHZ 32QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY48-MU.pdf
(302 pages)
Specifications of ATTINY88-MUR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
28
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
64 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY88-MUR
Manufacturer:
AT
Quantity:
20 000
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15.8.1
8008G–AVR–04/11
Master Transmitter Mode
The following sections describe each of these modes. Possible status codes are described
along with figures detailing data transmission in each of the modes. These figures contain the
following abbreviations:
In
numbers in the circles show the status code held in TWSR, with the prescaler bits masked to
zero. At these points, actions must be taken by the application to continue or complete the TWI
transfer. The TWI transfer is suspended until the TWINT Flag is cleared by software.
When the TWINT Flag is set, the status code in TWSR is used to determine the appropriate soft-
ware action. For each status code, the required software action and details of the following serial
transfer are given in
these tables.
In the Master Transmitter mode, a number of data bytes are transmitted to a Slave Receiver
(see
The format of the following address packet determines whether Master Transmitter or Master
Receiver mode is to be entered. If SLA+W is transmitted, MT mode is entered, if SLA+R is trans-
mitted, MR mode is entered. All the status codes mentioned in this section assume that the
prescaler bits are zero or are masked to zero.
Figure 15-11. Data Transfer in Master Transmitter Mode
SDA
SCL
Figure 15-12
S: START condition
Rs: REPEATED START condition
R: Read bit (high level at SDA)
W: Write bit (low level at SDA)
A: Acknowledge bit (low level at SDA)
A: Not acknowledge bit (high level at SDA)
Data: 8-bit data byte
P: STOP condition
SLA: Slave Address
Figure
15-11). In order to enter a Master mode, a START condition must be transmitted.
TRANSMITTER
Device 1
to
MASTER
Figure
Table 15-2
15-18, circles are used to indicate that the TWINT Flag is set. The
Device 2
RECEIVER
SLAVE
to
Table
15-5. Note that the prescaler bits are masked to zero in
Device 3
........
Device n
V
CC
ATtiny48/88
R1
R2
141
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