AT91SAM7S256D-AU Atmel, AT91SAM7S256D-AU Datasheet - Page 33

• Manufacturer Part Number: AT91SAM7S256D-AU
• Description: ARM Microcontrollers - MCU 256K Flash SRAM 64K ARM based MCU
• Manufacturer: Atmel
• Series: SAM7S256r

Specifications of AT91SAM7S256D-AU

• Rohs: yes
• Core: ARM
• Processor Series: AT91SAM
• Data Bus Width: 16 bit/32 bit
• Maximum Clock Frequency: 55 MHz
• Program Memory Size: 256 KB
• Data Ram Size: 64 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3 V to 3.6 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: LQFP-64
• Mounting Style: SMD/SMT
• Interface Type: 2-Wire, I2S, SPI, USART
• Length: 7 mm

10.
10.1
10.2
Peripherals
User Interface
The User Peripherals are mapped in the 256 MBytes of address space between 0xF000 0000 and 0xFFFF EFFF. Each
peripheral is allocated 16 Kbytes of address space.
A complete memory map is provided in
Peripheral Identifiers
The SAM7S Series embeds a wide range of peripherals.
SAM7S512/256/128/64/321/161.
is required for the control of the peripheral interrupt with the Advanced Interrupt Controller and for the control of the
peripheral clock with the Power Management Controller.
Table 10-1. Peripheral Identifiers (SAM7S512/256/128/64/321/161)
Note:
Note:
Peripheral
ID
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 - 29
30
31
1.
1.
Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The System Controller
is continuously clocked. The ADC clock is automatically started for the first conversion. In Sleep Mode the
ADC clock is automatically stopped after each conversion.
Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The System Controller
is continuously clocked. The ADC clock is automatically started for the first conversion. In Sleep Mode the
ADC clock is automatically stopped after each conversion.
Peripheral
Mnemonic
AIC
SYSC
PIOA
Reserved
ADC
SPI
US0
US1
SSC
TWI
PWMC
UDP
TC0
TC1
TC2
Reserved
AIC
AIC
(1)
(1)
Table 10-2
Figure 8-1 on page
Peripheral
Name
Advanced Interrupt Controller
System
Parallel I/O Controller A
Analog-to Digital Converter
Serial Peripheral Interface
USART 0
USART 1
Synchronous Serial Controller
Two-wire Interface
PWM Controller
USB Device Port
Timer/Counter 0
Timer/Counter 1
Timer/Counter 2
Advanced Interrupt Controller
Advanced Interrupt Controller
defines the Peripheral Identifiers of the SAM7S32/16. A peripheral identifier
Table 10-1
20.
defines the Peripheral Identifiers of the
SAM7S Series [DATASHEET]
External
Interrupt
FIQ
IRQ0
IRQ1
6175M–ATARM–26-Oct-12
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