AT91SAM9R64-CU-999 Atmel, AT91SAM9R64-CU-999 Datasheet - Page 885

• Manufacturer Part Number: AT91SAM9R64-CU-999
• Description: IC MCU ARM9 64K SRAM 144LFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

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

6289C–ATARM–28-May-09
Example with libV3.
• The main code:
• The C SYS handler:
• The assembler routine:
//user reset interrupt setting
*AT91C_RSTC_RMR = (0xA5<<24) | (0x4<<8) | AT91C_RSTC_URSTIEN;
extern void soft_user_reset(void);
void sysc_handler(void){
//check if interrupt comes from RSTC
}
AREA
soft_user_reset
;disable IRQs
;change refresh rate to block all data accesses
// Configure AIC controller to handle SSC interrupts
AT91F_AIC_ConfigureIt (
// Enable SYSC interrupt in AIC
AT91F_AIC_EnableIt(AT91C_BASE_AIC, AT91C_ID_SYS);
soft_user_reset();
//never reached
while(1);
INCLUDEAT91SAM9xxx.inc
EXPORTsoft_user_reset
MRS r0, CPSR
ORR r0, r0, #0x80
MSR CPSR_c, r0
LDR r0, =AT91C_SDRAMC_TR
LDR r1, =1
STR r1, [r0]
if( (*AT91C_RSTC_RSR & AT91C_RSTC_URSTS ) == AT91C_RSTC_URSTS){
}
AT91C_BASE_AIC,
AT91C_ID_SYS,
AT91C_AIC_PRIOR_HIGHEST,
AT91C_AIC_SRCTYPE_INT_EDGE_TRIGGERED, // Level sensitive
sysc_handler );
TEST, CODE
AT91SAM9R64/RL64 Preliminary
// System peripheral ID
// AIC base address
// Max priority
885