AT91SAM7S32B-MU Atmel, AT91SAM7S32B-MU Datasheet - Page 140
![IC MCU ARM7 32KB FLASH 48-VQFN](/photos/7/34/73471/48-vqfn-6_543-5130_01-4_sml.jpg)
AT91SAM7S32B-MU
Manufacturer Part Number
AT91SAM7S32B-MU
Description
IC MCU ARM7 32KB FLASH 48-VQFN
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7S16-MU.pdf
(779 pages)
Specifications of AT91SAM7S32B-MU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
I²C, SPI, SSC, UART/USART
Peripherals
Brown-out Detect/Reset, DMA, POR, PWM, WDT
Number Of I /o
21
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
8K 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
48-VQFN Exposed Pad, 48-HVQFN, 48-SQFN, 48-DHVQFN
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
-
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20.3.4.3
20.3.4.4
20.3.4.5
140
AT91SAM7S Series Preliminary
Flash Full Erase Command
Flash Lock Commands
Flash General-purpose NVM Commands
This command is used to erase the Flash memory planes.
All lock bits must be deactivated before using the Full Erase command. This can be done by
using the CLB command.
Table 20-24. Full Erase Command
Lock bits can be set using WPL or EWPL commands. They can also be set by using the Set
Lock command (SLB). With this command, several lock bits can be activated at the same time.
Bit 0 of Bit Mask corresponds to the first lock bit and so on.
In the same way, the Clear Lock command (CLB) is used to clear lock bits. All the lock bits can
also be cleared by the EA command.
Table 20-25. Set and Clear Lock Bit Command
Lock bits can be read using Get Lock Bit command (GLB). When a bit set in the Bit Mask is
returned, then the corresponding lock bit is active.
Table 20-26. Get Lock Bit Command
General-purpose NVM bits (GP NVM) can be set with the Set GPNVM command (SGPB). Using
this command, several GP NVM bits can be activated at the same time. Bit 0 of Bit Mask corre-
sponds to the first GPNVM bit and so on.
In the same way, the Clear GPNVM command (CGPB) is used to clear GP NVM bits. All the
general-purpose NVM bits are also cleared by the EA command.
Table 20-27. Set and Clear General-purpose NVM Bit Command
Read/Write
Write
Read/Write
Write
Write
Read/Write
Write
Read
Read/Write
Write
Write
DR Data
EA
DR Data
SLB or CLB
DR Data
GLB
Bit Mask
Bit Mask
DR Data
SGPB or CGPB
Bit Mask
6175K–ATARM–30-Aug-10
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