AT91SAM7X128-CU Atmel, AT91SAM7X128-CU Datasheet - Page 70

• Manufacturer Part Number: AT91SAM7X128-CU
• Description: MCU ARM 128K HS FLASH 100-TFBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7X128-CU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: CAN, Ethernet, I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 62
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 100-TFBGA
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7X-EK - KIT EVAL FOR AT91SAM7X256/128
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

13.3.2
Register Name:
Access Type:
• URSTS: User Reset Status
0 = No high-to-low edge on NRST happened since the last read of RSTC_SR.
1 = At least one high-to-low transition of NRST has been detected since the last read of RSTC_SR.
• BODSTS: Brownout Detection Status
0 = No brownout high-to-low transition happened since the last read of RSTC_SR.
1 = A brownout high-to-low transition has been detected since the last read of RSTC_SR.
• RSTTYP: Reset Type
Reports the cause of the last processor reset. Reading this RSTC_SR does not reset this field.
• NRSTL: NRST Pin Level
Registers the NRST Pin Level at Master Clock (MCK).
• SRCMP: Software Reset Command in Progress
0 = No software command is being performed by the reset controller. The reset controller is ready for a software command.
1 = A software reset command is being performed by the reset controller. The reset controller is busy.
70
0
0
0
1
1
31
23
15
–
–
–
7
–
RSTTYP
AT91SAM7X512/256/128 Preliminary
Reset Controller Status Register
0
1
1
0
0
0
0
1
0
1
30
22
14
RSTC_SR
Read-only
–
–
–
6
–
Reset Type
Power-up Reset
Watchdog Reset
Software Reset
User Reset
Brownout Reset
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
Comments
VDDCORE rising
Watchdog fault occurred
Processor reset required by the software
NRST pin detected low
Brownout reset occurred
27
19
11
–
–
–
3
–
26
18
10
–
–
2
–
BODSTS
RSTTYP
SRCMP
25
17
–
9
1
6120H–ATARM–17-Feb-09
URSTS
NRSTL
24
16
–
8
0