AT91SAM7SE256B-AUR Atmel, AT91SAM7SE256B-AUR Datasheet - Page 447

• 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 34-2.
Notes:
6222F–ATARM–14-Jan-11
Offset
0x0070
0x0074
0x0078
0x007C
to
0x009C
0x00A0
0x00A4
0x00A8
0x00AC
1. Reset value of PIO_PSR depends on the product implementation.
2. PIO_ODSR is Read-only or Read/Write depending on PIO_OWSR I/O lines.
3. Reset value of PIO_PDSR depends on the level of the I/O lines. Reading the I/O line levels requires the clock of the PIO
4. PIO_ISR is reset at 0x0. However, the first read of the register may read a different value as input changes may have
5. Only this set of registers clears the status by writing 1 in the first register and sets the status by writing 1 in the second
Controller to be enabled, otherwise PIO_PDSR reads the levels present on the I/O line at the time the clock was disabled.
occurred.
register.
PIO Register Mapping (Continued)
Register
Peripheral A Select Register
Peripheral B Select Register
AB Status Register
Reserved
Output Write Enable
Output Write Disable
Output Write Status Register
Reserved
(5)
(5)
(5)
SAM7SE512/256/32 Preliminary
Name
PIO_ASR
PIO_BSR
PIO_ABSR
PIO_OWER
PIO_OWDR
PIO_OWSR
Write-only
Write-only
Read-only
Write-only
Write-only
Read-only
Access
Reset Value
0x00000000
0x00000000
–
–
–
–
447