AT91SAM9261-CJ-999 Atmel, AT91SAM9261-CJ-999 Datasheet - Page 711

• 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: -

6062M–ATARM–23-Mar-09
• The C SYS handler:
• The assembler routine:
*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
;prepare power down command
;prepare proc_reset and periph_reset
// 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]
LDR r0, =AT91C_SDRAMC_LPR
LDR r1, =2
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
AT91SAM9261 Preliminary
// System peripheral ID
// AIC base address
// Max priority
711