Datasheet

28
6062LS–ATARM–23-Mar-09
AT91SAM9261
10. Peripherals
10.1 User Interface
The User Peripherals are mapped in the upper 256 Mbytes of the address space between the
addresses 0xFFFA 0000 and 0xFFFC FFFF. Each User Peripheral is allocated 16 Kbytes of
address space.
A complete memory map is presented in Figure 8-1 on page 16.
10.2 Peripheral Identifiers
Table 10-1 defines the Peripheral Identifiers of the AT91SAM9261. 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.
Note: Setting AIC, SYSIRQ, UHP, LCDC and IRQ0 to IRQ2 bits in the clock set/clear registers of the
PMC has no effect.
Table 10-1. Peripheral Identifiers
Peripheral ID Peripheral Mnemonic Peripheral Name External Interrupt
0 AIC Advanced Interrupt Controller FIQ
1 SYSIRQ System Interrupt
2 PIOA Parallel I/O Controller A
3 PIOB Parallel I/O Controller B
4 PIOC Parallel I/O Controller C
5- Reserved
6US0 USART 0
7US1 USART 1
8US2 USART 2
9 MCI Multimedia Card Interface
10 UDP USB Device Port
11 TWI Two-Wire Interface
12 SPI0 Serial Peripheral Interface 0
13 SPI1 Serial Peripheral Interface 1
14 SSC0 Synchronous Serial Controller 0
15 SSC1 Synchronous Serial Controller 1
16 SSC2 Synchronous Serial Controller 2
17 TC0 Timer/Counter 0
18 TC1 Timer/Counter 1
19 TC2 Timer/Counter 2
20 UHP USB Host Port
21 LCDC LCD Controller
22 - 28 - Reserved
29 AIC Advanced Interrupt Controller IRQ0
30 AIC Advanced Interrupt Controller IRQ1
31 AIC Advanced Interrupt Controller IRQ2