AT91SAM9261 datasheet(28/43 Pages) ATMEL

28 / 43 page

6062KS–ATARM–15-Jan-09

AT91SAM9261 Preliminary

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

AIC

Advanced Interrupt Controller

FIQ

SYSIRQ

System Interrupt

PIOA

Parallel I/O Controller A

PIOB

Parallel I/O Controller B

PIOC

Parallel I/O Controller C

Reserved

6US0

USART 0

7US1

USART 1

8US2

USART 2

MCI

Multimedia Card Interface

UDP

USB Device Port

TWI

Two-Wire Interface

SPI0

Serial Peripheral Interface 0

SPI1

Serial Peripheral Interface 1

SSC0

Synchronous Serial Controller 0

SSC1

Synchronous Serial Controller 1

SSC2

Synchronous Serial Controller 2

TC0

Timer/Counter 0

TC1

Timer/Counter 1

TC2

Timer/Counter 2

UHP

USB Host Port

LCDC

LCD Controller

22 - 28

Reserved

AIC

Advanced Interrupt Controller

IRQ0

AIC

Advanced Interrupt Controller

IRQ1

AIC

Advanced Interrupt Controller

IRQ2

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