AT91SAM9XE512-QU Atmel, AT91SAM9XE512-QU Datasheet - Page 324
![MCU ARM9 512K FLASH 208-PQFP](/photos/6/73/67311/313-208-pqfp_sml.jpg)
AT91SAM9XE512-QU
Manufacturer Part Number
AT91SAM9XE512-QU
Description
MCU ARM9 512K FLASH 208-PQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9XE128-QU.pdf
(860 pages)
Specifications of AT91SAM9XE512-QU
Core Processor
ARM9
Core Size
16/32-Bit
Speed
180MHz
Connectivity
EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
96
Program Memory Size
512KB (512K x 8)
Program Memory Type
FLASH
Ram Size
56K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
208-MQFP, 208-PQFP
Controller Family/series
AT91SAM9xxxxx
No. Of I/o's
96
Ram Memory Size
32KB
Cpu Speed
180MHz
No. Of Timers
2
Rohs Compliant
Yes
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
2-Wire, EBI, I2S, SPI, USART
Maximum Clock Frequency
180 MHz
Number Of Programmable I/os
96
Number Of Timers
6
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 4 Channel
Package
208PQFP
Device Core
ARM926EJ-S
Family Name
91S
Maximum Speed
180 MHz
Operating Supply Voltage
1.8|2.5|3.3 V
For Use With
AT91SAM9XE-EK - KIT EVAL FOR AT91SAM9XEAT91SAM-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
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Price
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- Download datasheet (13Mb)
6254C–ATARM–22-Jan-10
4. Setting PLL B and divider B:
5. Selection of Master Clock and Processor Clock
waiting the interrupt line to be raised if the associated interrupt to LOCKA has been enabled
in the PMC_IER register.
All parameters in CKGR_PLLAR can be programmed in a single write operation. If at some
stage one of the following parameters, SRCA, MULA, DIVA is modified, LOCKA bit will go
low to indicate that PLL A is not ready yet. When PLL A is locked, LOCKA will be set again.
User has to wait for LOCKA bit to be set before using the PLL A output clock.
Code Example:
PLL A and divider A are enabled. PLL A input clock is main clock divided by 5. PLL An out-
put clock is PLL A input clock multiplied by 4. Once CKGR_PLLAR has been written,
LOCKA bit will be set after six slow clock cycles.
All parameters needed to configure PLL B and divider B are located in the CKGR_PLLBR
register. ICPPLLB in PMC_PLLICPR register must be set to 1 before configuring the
CKGR_PLLBR register.
The DIVB field is used to control divider B itself. A value between 0 and 255 can be pro-
grammed. Divider B output is divider B input divided by DIVB parameter. By default DIVB
parameter is set to 0 which means that divider B is turned off.
The OUTB field is used to select the PLL B output frequency range.
The MULB field is the PLL B multiplier factor. This parameter can be programmed between
0 and 2047. If MULB is set to 0, PLL B will be turned off, otherwise the PLL B output fre-
quency is PLL B input frequency multiplied by (MULB + 1).
The PLLBCOUNT field specifies the number of slow clock cycles before LOCKB bit is set in
the PMC_SR register after CKGR_PLLBR register has been written.
Once the PMC_PLLB register has been written, the user must wait for the LOCKB bit to be
set in the PMC_SR register. This can be done either by polling the status register or by wait-
ing the interrupt line to be raised if the associated interrupt to LOCKB has been enabled in
the PMC_IER register. All parameters in CKGR_PLLBR can be programmed in a single
write operation. If at some stage one of the following parameters, MULB, DIVB is modified,
LOCKB bit will go low to indicate that PLL B is not ready yet. When PLL B is locked, LOCKB
will be set again. The user is constrained to wait for LOCKB bit to be set before using the
PLL A output clock.
The USBDIV field is used to control the additional divider by 1, 2 or 4, which generates the
USB clock(s).
Code Example:
If PLL B and divider B are enabled, the PLL B input clock is the main clock. PLL B output
clock is PLL B input clock multiplied by 5. Once CKGR_PLLBR has been written, LOCKB bit
will be set after eight slow clock cycles.
The Master Clock and the Processor Clock are configurable via the PMC_MCKR register.
write_register(CKGR_PLLAR,0x20030605)
write_register(CKGR_PLLBR,0x00040805)
AT91SAM9XE128/256/512 Preliminary
324
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