SAM7S16 Atmel Corporation, SAM7S16 Datasheet - Page 337
![no-image](/images/manufacturer_photos/0/0/79/atmel_corporation_sml.jpg)
SAM7S16
Manufacturer Part Number
SAM7S16
Description
Manufacturer
Atmel Corporation
Specifications of SAM7S16
Flash (kbytes)
16 Kbytes
Pin Count
48
Max. Operating Frequency
55 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
21
Ext Interrupts
21
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
2
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
4
Self Program Memory
NO
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
3.0 to 3.6
Fpu
No
Mpu / Mmu
no / no
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- Current page: 337 of 781
- Download datasheet (12Mb)
30.9.5.4
Figure 30-27. Clock Synchronization in Read Mode
Notes:
6175L–ATARM–28-Jul-11
TWI_THR
TXCOMP
SVREAD
Clock Synchronization in Read Mode
SCLWS
SVACC
TXRDY
TWCK
1. TXRDY is reset when data has been written in the TWI_TH to the shift register and set when this data has been acknowl-
2. At the end of the read sequence, TXCOMP is set after a STOP or after a REPEATED_START + an address different from
3. SCLWS is automatically set when the clock synchronization mechanism is started.
edged or non acknowledged.
SADR.
Clock Synchronization
1
2
S
S
The data is memorized in TWI_THR until a new value is written
TWI_THR is transmitted to the shift register
The clock is stretched after the ACK, the state of TWD is undefined during clock stretching
As soon as a START is detected
SADR
In both read and write modes, it may happen that TWI_THR/TWI_RHR buffer is not filled /emp-
tied before the emission/reception of a new character. In this case, to avoid sending/receiving
undesired data, a clock stretching mechanism is implemented.
The clock is tied low if the shift register is empty and if a STOP or REPEATED START condition
was not detected. It is tied low until the shift register is loaded.
Figure 30-27 on page 337
DATA0
DATA0
R
Write THR
A
1
DATA0
A
describes the clock synchronization in Read mode.
DATA1
DATA1
CLOCK is tied low by the TWI
as long as THR is empty
A
XXXXXXX
2
DATA2
DATA2
Ack or Nack from the master
SAM7S Series
NA
S
337
Related parts for SAM7S16
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B-P](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Monolithic Integrated Feature Phone Circuit
Manufacturer:
ATMEL Corporation
Datasheet:
![TDA4470](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Multistandard Video-IF and Quasi Parallel Sound Processing
Manufacturer:
ATMEL Corporation
Datasheet:
![ATF22V10B-25PC](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
High-performance EE PLD
Manufacturer:
ATMEL Corporation
Datasheet:
![AT89C51ED2-IM](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
8-bit Flash Microcontroller
Manufacturer:
ATMEL Corporation
Datasheet:
![AT24C01](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
2-Wire Serial EEPROM
Manufacturer:
ATMEL Corporation
Datasheet:
![U6046B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
U6046BREAR WINDOW HEATING TIMER / LONG-TERM TIMER
Manufacturer:
ATMEL Corporation
Datasheet: