AT91SAM7SE32-AU Atmel, AT91SAM7SE32-AU Datasheet - Page 282
![MCU ARM 32K HS FLASH 128-LQFP](/photos/6/71/67112/128-lqfp_sml.jpg)
AT91SAM7SE32-AU
Manufacturer Part Number
AT91SAM7SE32-AU
Description
MCU ARM 32K HS FLASH 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7SE32-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
EBI/EMI, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
88
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
128-LQFP
Controller Family/series
AT91SAM7xxxx
No. Of I/o's
88
Ram Memory Size
8KB
Cpu Speed
48MHz
No. Of Timers
3
Rohs Compliant
Yes
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
8 KB
Interface Type
EBI, SPI, TWI, USART
Maximum Clock Frequency
55 MHz
Number Of Programmable I/os
88
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7SE-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
AT91SAM7SE-EK - EVAL BOARD FOR AT91SAM7SEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7SE32-AU
Manufacturer:
ATMEL
Quantity:
624
Part Number:
AT91SAM7SE32-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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input divided by PRES parameter. By default, the PRES parameter is set to 1 which means
that master clock is equal to slow clock.
Once the PMC_PCKx register has been programmed, The corresponding Programmable
clock must be enabled and the user is constrained to wait for the PCKRDYx bit to be set in
the PMC_SR register. This can be done either by polling the status register or by waiting the
interrupt line to be raised if the associated interrupt to PCKRDYx has been enabled in the
PMC_IER register. All parameters in PMC_PCKx can be programmed in a single write
operation.
If the CSS and PRES parameters are to be modified, the corresponding Programmable
clock must be disabled first. The parameters can then be modified. Once this has been
done, the user must re-enable the Programmable clock and wait for the PCKRDYx bit to be
set.
Code Example:
write_register(PMC_PCK0,0x00000015)
Programmable clock 0 is main clock divided by 32.
6. Enabling Peripheral Clocks
Once all of the previous steps have been completed, the peripheral clocks can be enabled
and/or disabled via registers PMC_PCER and PMC_PCDR.
Depending on the system used, AT91SAM7SE512,14 peripheral clocks and for
AT91SAM7SE256/32,12 peripheral clocks can be enabled or disabled. The PMC_PCSR
provides a clear view as to which peripheral clock is enabled.
Note:
Each enabled peripheral clock corresponds to Master Clock.
Code Examples:
write_register(PMC_PCER,0x00000110)
Peripheral clocks 4 and 8 are enabled.
write_register(PMC_PCDR,0x00000010)
Peripheral clock 4 is disabled.
AT91SAM7SE512/256/32 Preliminary
282
6222B–ATARM–26-Mar-07
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