AT91SAM7S512-AU Atmel, AT91SAM7S512-AU Datasheet - Page 35

• Manufacturer Part Number: AT91SAM7S512-AU
• Description: MCU ARM 512K HI SPD FLASH 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S512-AU

• Core Processor: ARM7
• Core Size: 16/32-Bit
• Speed: 55MHz
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 512KB (512K x 8)
• Program Memory Type: FLASH
• Ram Size: 64K 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: 64-LQFP
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9AT91SAM7S-EK - KIT EVAL FOR ARM AT91SAM7S
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

10.3
6175IS–ATARM–30-Aug-10
Peripheral Multiplexing on PIO Lines
Table 10-2.
Note:
The AT91SAM7S Series features one PIO controller, PIOA, that multiplexes the I/O lines of the
peripheral set.
PIO Controller A controls 32 lines (21 lines for AT91SAM7S32/16). Each line can be assigned to
one of two peripheral functions, A or B. Some of them can also be multiplexed with the analog
inputs of the ADC Controller.
Table 10-3, “Multiplexing on PIO Controller A (AT91SAM7S512/256/128/64/321/161),” on
page 36
define how the I/O lines of the peripherals A, B or the analog inputs are multiplexed on the PIO
Controller A. The two columns “Function” and “Comments” have been inserted for the user’s
own comments; they may be used to track how pins are defined in an application.
Note that some peripheral functions that are output only may be duplicated in the table.
All pins reset in their Parallel I/O lines function are configured as input with the programmable
pull-up enabled, so that the device is maintained in a static state as soon as a reset is detected.
Peripheral
ID
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 - 29
30
31
1. Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The Sys-
and
tem 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.
Table 10-4, “Multiplexing on PIO Controller A (AT91SAM7S32/16),” on page 37
Peripheral Identifiers (AT91SAM7S32/16)
Peripheral
Mnemonic
AIC
SYSC
PIOA
Reserved
ADC
SPI
US
Reserved
SSC
TWI
PWMC
Reserved
TC0
TC1
TC2
Reserved
AIC
Reserved
(1)
(1)
AT91SAM7S Series Summary
Peripheral
Name
Advanced Interrupt Controller
System
Parallel I/O Controller A
Analog-to Digital Converter
Serial Peripheral Interface
USART
Synchronous Serial Controller
Two-wire Interface
PWM Controller
Timer/Counter 0
Timer/Counter 1
Timer/Counter 2
Advanced Interrupt Controller
External
Interrupt
IRQ0
FIQ
35