AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 241
![IC ARM7 MCU FLASH 256K 128-LQFP](/photos/39/71/397101/lqfp-128_sml.jpg)
AT91SAM7SE256B-AUR
Manufacturer Part Number
AT91SAM7SE256B-AUR
Description
IC ARM7 MCU FLASH 256K 128-LQFP
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM7SE256-AU.pdf
(673 pages)
Specifications of AT91SAM7SE256B-AUR
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
256KB (256K 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
*
Processor Series
SAM7SE256
Core
ARM7TDMI
Data Bus Width
32 bit
Data Ram Size
32 KB
Interface Type
SPI, USB
Maximum Clock Frequency
48 MHz
Number Of Programmable I/os
88
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Operating Temperature Range
- 40 C to + 85 C
Processor To Be Evaluated
AT91SAM7SE256B
Supply Current (max)
60 uA
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
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26.4.5
Name:
Access:
• RXNPTR: Receive Next Pointer Address
RXNPTR is the address of the next buffer to fill with received data when the current buffer is full.
26.4.6
Name:
Access:
• RXNCR: Receive Next Counter Value
RXNCR is the size of the next buffer to receive.
6222F–ATARM–14-Jan-11
31
23
15
31
23
15
7
7
PDC Receive Next Pointer Register
PDC Receive Next Counter Register
30
22
14
30
22
14
Read/Write
6
Read/Write
6
PERIPH_RNPR
PERIPH_RNCR
29
21
13
29
21
13
5
5
28
20
12
28
20
12
4
4
RXNPTR
RXNPTR
RXNPTR
RXNPTR
RXNCR
RXNCR
--
--
SAM7SE512/256/32 Preliminary
27
19
11
27
19
11
3
3
26
18
10
26
18
10
2
2
25
17
25
17
9
1
9
1
24
16
24
16
8
0
8
0
241
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