AT91SAM7S32-AU-999 Atmel, AT91SAM7S32-AU-999 Datasheet - Page 742
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
AT91SAM7S32-AU-999
Manufacturer Part Number
AT91SAM7S32-AU-999
Description
IC MCU ARM7 32KB FLASH 48LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7S32-AU-999
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
I²C, SPI, SSC, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
48-LQFP
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 742 of 779
- Download datasheet (11Mb)
40.21.5.10
40.21.5.11
40.21.5.12
40.21.6
40.21.6.1
40.21.6.2
742
AT91SAM7S Series Preliminary
Synchronous Serial Controller (SSC)
SPI: Software Reset and SPIEN Bit
SPI: CSAAT = 1 and Delay
SPI: Bad Serial Clock Generation on 2nd Chip Select
SSC: Periodic Transmission Limitations in Master Mode
SSC: Transmitter Limitations in Slave Mode
None.
The SPI Command “software reset” does not reset the SPIEN config bit. Therefore rewriting an
SPI enable command does not set TX_READY, TX_EMPTY flags.
Send SPI disable command after a software reset.
If CSAAT = 1 for current access and there is no more TX request for a time greater
than DLYBCT + DLYBCS, then if an access is requested on another slave, the NPCS bus
switches from one CS to the one requested without DLYBCS. External Slaves may reach a con-
tention on SPI_MISO line for a short period.
Assert the Last Transfer Command (NPCS de-activation) for the last character of each slave.
Bad Serial clock generation on the 2nd chip select when SCBR = 1, CPOL = 1 and NCPHA = 0.
This occurs using SPI with the following conditions:
Do not use a multiple Chip Select configuration where at least one SCRx register is configured
with SCBR = 1 and the others differ from 1 if NCPHA = 0 and CPOL = 1.
If all chip selects are configured with Baudrate = 1, the issue does not appear.
If the Least Significant Bit is sent first (MSBF = 0), the first TAG during the frame synchro is not
sent.
None.
If TK is programmed as output and TF is programmed as input, it is impossible to emit data
when the start of edge (rising or falling) of synchro has a Start Delay equal to zero.
None.
• Master Mode
• CPOL = 1 and NCPHA = 0
• Multiple chip selects are used with one transfer with Baud rate (SCBR) equal to 1 (i.e., when
• Transmitting with the slowest chip select and then with the fastest one, then an additional
serial clock frequency equals the system clock frequency) and the other transfers set with
SCBR are not equal to 1
pulse is generated on output SPCK during the second transfer.
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
Problem Fix/Workaround
6175K–ATARM–30-Aug-10
Related parts for AT91SAM7S32-AU-999
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AT91SAM7S32](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
![AT91SAM7S32-AU-001](/photos/6/76/67647/453-48-lqfp_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU 32BIT 32K 48LQFP
Manufacturer:
Atmel
Datasheet:
![AT91SAM7S32-AI](/images/no-image3.png)
Part Number:
Description:
AT91 ARM Thumb-based Microcontrollers
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![AT91SAM7S32-MU](/photos/7/34/73471/48-vqfn-6_543-5130_01-4_tmb.jpg)
Part Number:
Description:
IC ARM7 MCU FLASH 32K 48QFN
Manufacturer:
Atmel
Datasheet:
![AT91SAM7S32-MU-999](/photos/7/34/73471/48-vqfn-6_543-5130_01-4_tmb.jpg)
Part Number:
Description:
IC MCU ARM7 32KB FLASH 48-VQFN
Manufacturer:
Atmel
Datasheet:
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![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: