SAM7S256_14 Datasheet, PDF (33/775 Pages) ATMEL Corporation – ARM-based Flash MCU

10. Peripherals
10.1
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 Figure 8-1 on page 20.
10.2
Peripheral Identifiers
The SAM7S Series embeds a wide range of peripherals. Table 10-1 defines the Peripheral Identifiers of the
SAM7S512/256/128/64/321/161. Table 10-2 defines the Peripheral Identifiers of the SAM7S32/16. A peripheral identifier
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)
Peripheral
ID
Peripheral
Mnemonic
Peripheral
Name
External
Interrupt
0
AIC
Advanced Interrupt Controller
FIQ
1
SYSC⁽¹⁾
System
2
PIOA
Parallel I/O Controller A
3
Reserved
4
ADC⁽¹⁾
Analog-to Digital Converter
5
SPI
Serial Peripheral Interface
6
US0
USART 0
7
US1
USART 1
8
SSC
Synchronous Serial Controller
9
TWI
Two-wire Interface
10
PWMC
PWM Controller
11
UDP
USB Device Port
12
TC0
Timer/Counter 0
13
TC1
Timer/Counter 1
14
TC2
Timer/Counter 2
15 - 29
Reserved
30
AIC
Advanced Interrupt Controller
IRQ0
31
AIC
Advanced Interrupt Controller
IRQ1
Note:
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.
Note:
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.
SAM7S Series [DATASHEET] 33
6175M–ATARM–26-Oct-12