AT91SAM9R64-CU-999 Atmel, AT91SAM9R64-CU-999 Datasheet - Page 52
![IC MCU ARM9 64K SRAM 144LFBGA](/photos/12/13/121356/144-lfbga_sml.jpg)
AT91SAM9R64-CU-999
Manufacturer Part Number
AT91SAM9R64-CU-999
Description
IC MCU ARM9 64K SRAM 144LFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9R64-CU.pdf
(903 pages)
Specifications of AT91SAM9R64-CU-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
240MHz
Connectivity
EBI/EMI, I²C, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, POR, PWM, WDT
Number Of I /o
49
Program Memory Size
32KB (32K x 8)
Program Memory Type
ROM
Ram Size
72K x 8
Voltage - Supply (vcc/vdd)
1.08 V ~ 1.32 V
Data Converters
A/D 3x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
144-LFBGA
Processor Series
AT91SAMx
Core
ARM926EJ-S
Data Bus Width
32 bit
Data Ram Size
64 KB
Interface Type
SPI, TWI, UART
Maximum Clock Frequency
240 MHz
Number Of Programmable I/os
118
Operating Supply Voltage
1.65 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM9RL-EK
Minimum Operating Temperature
- 40 C
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 52 of 903
- Download datasheet (13Mb)
12.3.7
52
AT91SAM9R64/RL64 Preliminary
ARM9EJ-S Registers
Mode changes may be made under software control, or may be brought about by external inter-
rupts or exception processing. Most application programs execute in User Mode. The non-user
modes, known as privileged modes, are entered in order to service interrupts or exceptions or to
access protected resources.
The ARM9EJ-S core has a total of 37 registers:
Table 12-1
Table 12-1.
The ARM state register set contains 16 directly-accessible registers, r0 to r15, and an additional
register, the Current Program Status Register (CPSR). Registers r0 to r13 are general-purpose
• Supervisor mode is a protected mode for the operating system
• Abort mode is entered after a data or instruction prefetch abort
• System mode is a privileged user mode for the operating system
• Undefined mode is entered when an undefined instruction exception occurs
• 31 general-purpose 32-bit registers
• 6 32-bit status registers
System Mode
User and
CPSR
R10
R11
R12
R13
R14
PC
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
shows all the registers in all modes.
ARM9TDMI
Supervisor
SPSR_SVC
R13_SVC
R14_SVC
CPSR
Mode
R10
R11
R12
PC
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
™
Modes and Registers Layout
SPSR_ABORT
R13_ABORT
R14_ABORT
Abort Mode
CPSR
R10
R11
R12
PC
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
SPSR_UNDEF
R13_UNDEF
R14_UNDEF
Undefined
CPSR
Mode
R10
R11
R12
PC
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
Interrupt Mode
Mode-specific banked registers
SPSR_IRQ
R13_IRQ
R14_IRQ
CPSR
R10
R11
R12
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
PC
6289C–ATARM–28-May-09
Fast Interrupt
SPSR_FIQ
R10_FIQ
R11_FIQ
R12_FIQ
R13_FIQ
R14_FIQ
R8_FIQ
R9_FIQ
CPSR
Mode
R0
R1
R2
R3
R4
R5
R6
R7
PC
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