AT91SAM7S64B-MU Atmel, AT91SAM7S64B-MU Datasheet - Page 35

• Manufacturer Part Number: AT91SAM7S64B-MU
• Description: IC ARM7 MCU FLASH 64K 64QFN
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S64B-MU

• Package / Case: 64-QFN
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Operating Temperature: -40°C ~ 85°C
• Speed: 55MHz
• Number Of I /o: 32
• Core Processor: ARM7
• Program Memory Type: FLASH
• Ram Size: 16K x 8
• Program Memory Size: 64KB (64K x 8)
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Connectivity: I²C, SPI, SSC, UART/USART, USB
• Core Size: 16/32-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

10.3
6175JS–ATARM–28-Jul-11
Peripheral Multiplexing on PIO Lines
Table 10-2.
Note:
The SAM7S 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 SAM7S32/16). 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 (SAM7S512/256/128/64/321/161),” on page 36
and
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
Table 10-4, “Multiplexing on PIO Controller A (SAM7S32/16),” on page 37
1. Setting SYSC and ADC bits in the clock set/clear registers of the PMC has no effect. The Sys-
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.
Peripheral Identifiers (SAM7S32/16)
Peripheral
Mnemonic
AIC
SYSC
PIOA
Reserved
ADC
SPI
US
Reserved
SSC
TWI
PWMC
Reserved
TC0
TC1
TC2
Reserved
AIC
Reserved
(1)
(1)
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
SAM7S Series Summary
define how the
External
Interrupt
IRQ0
FIQ
35