AT91SAM7S161-AU Atmel, AT91SAM7S161-AU Datasheet - Page 70
AT91SAM7S161-AU
Manufacturer Part Number
AT91SAM7S161-AU
Description
IC MCU ARM7 16KB FLASH 64LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7S161-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
64-LQFP
For Use With
AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7S161-AU
Manufacturer:
NXP
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3
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13.4.2
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
AT91SAM7S Series Preliminary
Reset Controller Status Register
0
1
1
0
0
0
0
1
0
1
30
22
14
–
–
–
6
–
RSTC_SR
Read-only
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
6175K–ATARM–30-Aug-10
URSTS
NRSTL
24
16
–
8
0
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