AT83C5135 Atmel Corporation, AT83C5135 Datasheet - Page 90

• Manufacturer Part Number: AT83C5135
• Manufacturer: Atmel Corporation

Specifications of AT83C5135

• Max. Operating Frequency: 32 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 512
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 4
• Mask Rom (kbytes): 16
• Watchdog: Yes

Figure 20-4. Format and State in the Master Transmitter Mode
90
CR2
1
1
1
1
Successfull
transmission
to a slave
receiver
Next transfer
started with a
repeated start
condition
Not acknowledge
received after the
slave address
Not acknowledge
received after a data
byte
Arbitration lost in slave
address or data byte
Arbitration lost and
addressed as slave
AT83C5134/35/36
CR1
0
0
1
1
From master to slave
From slave to master
CR0
08h
0
1
0
1
S
SLA
F
OSCA
0.5 <. < 62.5
= 12 MHz
100
200
-
W
Bit Frequency ( kHz)
A or A
Data
MT
18h
A
A
A
20h
38h
68h
n
F
Other master
Other master
continues
78h
OSCA
continues
0.67 <. < 83
P
A
133.3
266.6
= 16 MHz
Data
-
B0h
Any number of data bytes and their associated
acknowledge bits
This number (contained in SSCS) corresponds
to a defined state of the 2-wire bus
A or A
28h
Timer 1 in mode 2 can be used as TWI baudrate
A
A
38h
30h
generator with the following formula:
To corresponding
states in slave mode
Other master
continues
96.(256-”Timer1 reload value”)
P
S
10h
P
F
OSCA
Unused
SLA
divided by
120
60
W
R
7683C–USB–11/07
MR