AT91SAM7SE32-AU Atmel, AT91SAM7SE32-AU Datasheet - Page 223
AT91SAM7SE32-AU
Manufacturer Part Number
AT91SAM7SE32-AU
Description
MCU ARM 32K HS FLASH 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91SAM7SE32-AU
Core Processor
ARM7
Core Size
16/32-Bit
Speed
55MHz
Connectivity
EBI/EMI, I²C, SPI, SSC, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
88
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
128-LQFP
Controller Family/series
AT91SAM7xxxx
No. Of I/o's
88
Ram Memory Size
8KB
Cpu Speed
48MHz
No. Of Timers
3
Rohs Compliant
Yes
Processor Series
AT91SAMx
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
8 KB
Interface Type
EBI, SPI, TWI, USART
Maximum Clock Frequency
55 MHz
Number Of Programmable I/os
88
Number Of Timers
3
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
Development Tools By Supplier
AT91SAM-ICE, AT91-ISP, AT91SAM7SE-EK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
AT91SAM7SE-EK - EVAL BOARD FOR AT91SAM7SEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT91SAM7SE32-AU
Manufacturer:
ATMEL
Quantity:
624
Part Number:
AT91SAM7SE32-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
- Current page: 223 of 655
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Figure 24-2. Parity Generation for 512/1024/2048/4096 8-bit Words1
6222B–ATARM–26-Mar-07
(page size -1 )th byte
(page size -2 )th byte
(page size -3 )th byte
Page size th byte
Page size = 512 Px = 2048
Page size = 1024 Px = 4096
Page size = 2048 Px = 8192
Page size = 4096 Px = 16384
4 th byte
2nd byte
3rd byte
1st byte
bit words. Of the 32 ECC bits, 26 bits are for line parity and 6 bits are for column parity. They are
generated according to the schemes shown in
To calculate P8’ to PX’ and P8 to PX, apply the algorithm that follows.
Bit7
Bit7
Bit7
Bit7
Bit7
Bit7
Bit7
Bit7
P1
Page size = 2
P2
for i =0 to n
begin
end
Bit6
Bit6
Bit6
Bit6
Bit6
Bit6
Bit6
Bit6
for (j = 0 to page_size_byte)
begin
P1'
if(j[i] ==1)
else
end
P[2
P[2
P4
i+3
i+3
Bit5
Bit5
Bit5
Bit5
Bit5
Bit5
Bit5
Bit5
P1
]=bit7(+)bit6(+)bit5(+)bit4(+)bit3(+)
]’=bit7(+)bit6(+)bit5(+)bit4(+)bit3(+)
P2'
n
Bit4
Bit4
Bit4
Bit4
Bit4
Bit4
Bit4
Bit4
P1'
bit2(+)bit1(+)bit0(+)P[2
bit2(+)bit1(+)bit0(+)P[2
AT91SAM7SE512/256/32 Preliminary
Bit3
Bit3
Bit3
Bit3
Bit3
Bit3
Bit3
Bit3
P1
P2
P1=bit7(+)bit5(+)bit3(+)bit1(+)P1
P2=bit7(+)bit6(+)bit3(+)bit2(+)P2
P4=bit7(+)bit6(+)bit5(+)bit4(+)P4
P1'=bit6(+)bit4(+)bit2(+)bit0(+)P1'
P2'=bit5(+)bit4(+)bit1(+)bit0(+)P2'
P4'=bit7(+)bit6(+)bit5(+)bit4(+)P4'
Bit2
Bit2
Bit2
Bit2
Bit2
Bit2
Bit2
Bit2
P1'
P4'
Bit1
Bit1
Bit1
Bit1
Bit1
Bit1
Bit1
Bit1
P1
P2'
Figure 24-2
Bit0
Bit0
Bit0
Bit0
Bit0
Bit0
Bit0
Bit0
P1'
i+3
i+3
]
P8
P8'
P8
P8'
P8
P8'
P8
P8'
]'
and
P16'
P16'
P16
P16
Figure
P32
P32
P32
24-3.
PX
PX'
223
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