AT91SAM9G46-CU Atmel, AT91SAM9G46-CU Datasheet - Page 36

• Manufacturer Part Number: AT91SAM9G46-CU
• Description: IC ARM9 MCU 324TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9G46-CU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 400MHz
• Connectivity: EBI/EMI, Ethernet, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB
• Peripherals: AC'97, DMA, I²S, LCD, POR, PWM, WDT
• Number Of I /o: 160
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: ROM
• Ram Size: 128K x 8
• Voltage - Supply (vcc/vdd): 0.9 V ~ 1.1 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

8.7.1
8.7.1.1
8.7.1.2
36
SAM9G46
Main Application Modes
Normal Mode
USB HS and LP-DDR Mode
Figure 8-4.
The Power Management Controller provides 3 main application modes.
• PLLA and UPLL are running respectively at 400 MHz and 480 MHz
• USB Device High Speed and Host EHCI High Speed operations are allowed
• Full Speed OHCI input clock is UPLLCK, USBDIV is 9 (division by 10)
• System Input clock is PLLACK, PCK is 400 MHz
• MDIV is ‘11’, MCK is 133 MHz
• DDR2 can be used at up to 133 MHz
• Only UPLL is running at 480 MHz, PLLA power consumption is saved
• USB Device High Speed and Host EHCI High Speed operations are allowed
• Full Speed OHCI input clock is UPLLCK, USBDIV is 9 (division by 10)
• System Input clock is UPLLCK, Prescaler is 2, PCK is 240 MHz
• MDIV is ‘01’, MCK is 120 MHz
• Only LP-DDR can be used at up to 120 MHz
PLLACK
/1,/2
UPLLCK
MAINCK
SLCK
SAM9G46 Power Management Controller Block Diagram
USBS
Master Clock Controller
/1,/2,/4,.../64
Prescaler
UPLLCK
MAINCK
USBDIV+1
SLCK
Programmable Clock Controller
/1 /2
X /1 /1.5 /2
/4
Divider
/1,/2,/4,...,/64
/3 /4
Prescaler
UHP12M
UHP48M
ON/OFF
OHCI
USB
EHCI
USB
Clock Controller
Processor
Controller
Clock
Peripherals
ON/OFF
11028CS–ATARM–8-Apr-11
pck[..]
MCK
periph_clk[..]
SysClk DDR
PCK
int