AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 40

• Manufacturer Part Number: AT91SAM9261-CJ-999
• Description: IC MCU ARM9 ULTRA LP 217LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9261-CJ-999

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 190MHz
• Connectivity: EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: DMA, LCD, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: ROM
• Ram Size: 192K x 8
• Voltage - Supply (vcc/vdd): 1.08 V ~ 1.32 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 217-LFBGA
• For Use With: AT91SAM9261-EK - KIT EVAL FOR AT91SAM926EJ-SAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

11.2
Figure 11-1. ARM926EJ-S Internal Functional Block Diagram
11.3
11.3.1
11.3.2
40
Block Diagram
ARM9EJ-S Processor
AT91SAM9261 Preliminary
ARM9EJ-S Operating States
Switching State
Interface
ICE
EmbeddedICE
WDATA
-RT
Interface
ARM9EJ-S
ETM
The ARM9EJ-S processor can operate in three different states, each with a specific instruction
set:
In Jazelle state, all instruction Fetches are in words.
The operating state of the ARM9EJ-S core can be switched between:
• ARM state: 32-bit, word-aligned ARM instructions.
• THUMB state: 16-bit, halfword-aligned Thumb instructions.
• Jazelle state: variable length, byte-aligned Jazelle instructions.
• ARM state and THUMB state using the BX and BLX instructions, and loads to the PC
Processor
RDATA
INSTR
Coprocessor
DA
Interface
IA
Droute
Iroute
ARM926EJ-S
DCACHE
DEXT
MMU
ICACHE
IEXT
Interface
Interface
TCM
Instruction
Bus
Unit
Interface
Interface
AHB
Data
AHB
6062M–ATARM–23-Mar-09
AHB
AHB