SAM9G45 Atmel Corporation, SAM9G45 Datasheet - Page 2
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SAM9G45
Manufacturer Part Number
SAM9G45
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G45.pdf
(10 pages)
5.SAM9G45.pdf
(55 pages)
6.SAM9G45.pdf
(1196 pages)
Specifications of SAM9G45
Flash (kbytes)
0 Kbytes
Pin Count
324
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
160
Ext Interrupts
160
Usb Transceiver
3
Usb Speed
Hi-Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
2
Uart
5
Lin
4
Ssc
2
Ethernet
1
Sd / Emmc
2
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
Yes
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
440
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
NO
External Bus Interface
2
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
2. Errata
2.1
2.1.1
2.2
2.2.1
2.3
2.3.1
2.3.2
2
DDRSDRAM Controller (DDRSDRC)
Error Corrected Code Controller (ECC)
Internal Memory
AT91SAM9G45 Errata
DDRSDRC: DDR2 Multi-port Read Optimization
ECC: Computation with a 1 clock cycle long NRD/NWE pulse
ROM Code: SAM-BA
AT91SAM9G45-ES ROM Code Replacement
Read optimization does not work for the multi-port DDR2. This feature is enabled by default in
the DDRSDRC_HS register at offset 0x2C in the DDRSDRC user interface.
Read optimization must be disabled by software by setting the DIS_ANTICIP_READ bit.
If the SMC is programmed with NRD/NWE pulse length equal to 1 clock cycle, HECC cannot
compute the parity.
It is recommended to program SMC with a value superior to 1.
The connection through USB to the SAM-BA monitor does not work.
Use JTAG or serial port to communicate with SAM-BA monitor.
Note:
Procedure to install AT91SAM9G45-ES ROM code replacement:
P r i o r t o a n y o p e r a t i o n , t h e u s e r n e e d s t o i n s t a l l A T 9 1 - I S P . e x e 1 . 1 3 a n d u n z i p
AT91SAM9G45_RomCode_Replacement.zip
with USB issue fixed. Check and conform to the following Default Jumpers Settings.
Problem Fix/Workaround
Problem/Fix Workaround
Problem Fix/Workaround
®
through USB
See the steps described below.
file that contains a version of ROM binary code
6485B–ATARM–28-Sep-09