AT91SAM9XE512-QU Atmel, AT91SAM9XE512-QU Datasheet - Page 315

• Manufacturer Part Number: AT91SAM9XE512-QU
• Description: MCU ARM9 512K FLASH 208-PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

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

27. Clock Generator
27.1
27.2
27.3
6254C–ATARM–22-Jan-10
Description
Clock Generator Block Diagram
Slow Clock Crystal Oscillator
The Clock Generator is made up of 2 PLL, a Main Oscillator, as well as an RC Oscillator and a
32,768 Hz low-power Oscillator.
It provides the following clocks:
The Clock Generator User Interface is embedded within the Power Management Controller one
and is described in
Figure 27-1. Clock Generator Block Diagram
The Clock Generator integrates a 32,768 Hz low-power oscillator. The XIN32 and XOUT32 pins
must be connected to a 32,768 Hz crystal. Two external capacitors must be wired as shown in
Figure
• SLCK, the Slow Clock, which is the only permanent clock within the system
• MAINCK is the output of the Main Oscillator
• PLLACK is the output of the Divider and PLL A block
• PLLBCK is the output of the Divider and PLL B block
27-2.
Section
AT91SAM9XE128/256/512 Preliminary
OSC_SEL
XOUT32
PLLRCA
28.9. However, the Clock Generator registers are named CKGR_.
XIN32
XOUT
XIN
Clock Generator
Management
Slow Clock
Controller
On Chip
RC OSC
Oscillator
Oscillator
Status
PLL and
Divider A
PLL and
Divider B
Power
Main
Control
Main Clock
MAINCK
PLLA Clock
PLLACK
PLLB Clock
PLLBCK
Slow Clock
SLCK
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