SAM9G25 Atmel Corporation, SAM9G25 Datasheet - Page 27

• Manufacturer Part Number: SAM9G25
• Manufacturer: Atmel Corporation

Specifications of SAM9G25

• Flash (kbytes): 0 Kbytes
• Pin Count: 247
• Max. Operating Frequency: 400 MHz
• Cpu: ARM926
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 105
• Ext Interrupts: 105
• Usb Transceiver: 3
• Usb Speed: Hi-Speed
• Usb Interface: Host, Device
• Spi: 2
• Twi (i2c): 3
• Uart: 7
• Lin: 4
• Ssc: 1
• Ethernet: 1
• Sd / Emmc: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: Yes
• Adc Channels: 12
• Adc Resolution (bits): 10
• Adc Speed (ksps): 440
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 32
• Self Program Memory: NO
• External Bus Interface: 1
• Dram Memory: DDR2/LPDDR, SDRAM/LPSDR
• Nand Interface: Yes
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8/3.3
• Operating Voltage (vcc): 0.9 to 1.1
• Fpu: No
• Mpu / Mmu: No/Yes
• Timers: 6
• Output Compare Channels: 6
• Input Capture Channels: 6
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

6.6
Table 1. AT91SAM9G25 Master to Slave Access
11032AS–ATARM–27-Jul-11
Masters
Slaves
0
1
2
3
4
5
6
7
8
9
USB Device High Speed DPR
USB Host OHCI registers
Master to Slave Access
USB Host EHCI registers
External Bus Interface
Peripheral Bridge 0
Peripheral Bridge 1
Internal SRAM
Internal ROM
DDR2 Port 1
DDR2 Port 2
DDR2 Port 3
SMD
All the Masters can normally access all the Slaves. However, some paths do not make sense,
for example allowing access from the USB Device High speed DMA to the Internal Peripherals.
Thus, these paths are forbidden or simply not wired, and shown as “-” in the following table.
0
ARM926
Instr.
X
X
X
X
X
X
X
X
-
-
1
ARM926
Data
X
X
X
X
X
X
X
X
-
-
2&3
DMA 0
X
X
X
X
X
X
-
-
-
-
4&5
DMA 1
X
X
X
X
X
X
X
-
-
-
6
USB Device
HS DMA
X
X
-
-
-
-
-
-
-
-
USB Host
HS EHCI
7
X
X
-
-
-
-
-
-
-
-
8
USB Host
HS OHCI
X
X
-
-
-
-
-
-
-
-
9
ISI DMA
SAM9G25
X
X
X
-
-
-
-
-
-
-
10
EMAC DMA
X
X
-
-
-
-
-
-
-
-
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