AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 144

• Manufacturer Part Number: AT91SAM7SE256B-AUR
• Description: IC ARM7 MCU FLASH 256K 128-LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

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

Table 21-5.
21.6.5.4
Table 21-6.
144
Attribute Memory
Common Memory
I/O Mode
True IDE Mode
Pins
NCS4/CFCS0
NCS2/CFCS1
Mode Base Address
SAM7SE512/256/32 Preliminary
Multiplexing of CompactFlash Signals on EBI Pins
CompactFlash Mode Selection
Dedicated CompactFlash Interface Multiplexing
CS4A = 1
CFCS0
Figure 21-4. CompactFlash Read/Write Control Signals
Table 21-6
nals with other EBI signals on the EBI pins. The EBI pins in
the CompactFlash interface as soon as the CS4A and/or CS2A field of the Chip Select Assign-
ment Register is set
must not be used to drive any other memory devices.
The EBI pins in
CompactFlash interface is enabled (CS4A = 1 and/or CS2A = 1).
CFOE
NRD
CompactFlash Signals
1
0
and
External Bus Interface
Table 21-7 on page 145
Table 21-7
SMC
NWR0_NWE
CS2A = 1
CFCS1
(See “EBI Chip Select Assignment Register” on page
NRD
A22
A21
remain shared between all memory areas when the corresponding
NWR0_NWE
CFWE
1
1
describe the multiplexing of the CompactFlash logic sig-
CS4A = 0
NCS4
1
1
0
1
0
1
CompactFlash Logic
CFIOR
NRD
NRD
1
1
1
Table 21-6
EBI Signals
0
1
0
1
CS2A = 0
NCS2
are strictly dedicated to
6222F–ATARM–14-Jan-11
CFOE
CFWE
CFIOR
CFIOW
158.). These pins
NWR0_NWE
NWR0_NWE
CFIOW
1