SAM9G25 Atmel Corporation, SAM9G25 Datasheet - Page 109

• 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

Chapter 5
Tightly-Coupled Memory Interface
ARM DDI0198D
This chapter describes the ARM926EJ-S Tightly-Coupled Memory (TCM) interface. It
contains the following sections:
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Copyright © 2001-2003 ARM Limited. All rights reserved.
About the tightly-coupled memory interface on page 5-2
TCM interface signals on page 5-4
TCM interface bus cycle types and timing on page 5-8
TCM programmer’s model on page 5-19
TCM interface examples on page 5-20
TCM access penalties on page 5-29
TCM write buffer on page 5-30
Using synchronous SRAM as TCM memory on page 5-31
TCM clock gating on page 5-32.
5-1