AT91SAM7S321-AU Atmel, AT91SAM7S321-AU Datasheet - Page 774

• Manufacturer Part Number: AT91SAM7S321-AU
• Description: IC ARM7 MCU FLASH 32K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S321-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: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K 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
• Processor Series: AT91SAMx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 8 KB
• Interface Type: I2C, I2S, SPI, SSC, TWI, UART, USB
• Maximum Clock Frequency: 55 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 10 bit
• Operating Supply Voltage: 1.8 V to 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM7S-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM7S-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Controller Family/series: AT91SAM7xxxx
• No. Of I/o's: 32
• Ram Memory Size: 8KB
• Cpu Speed: 55MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• 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: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

764
AT91SAM7S Series Preliminary
19 Embedded Flash Controller (EFC) ..................................................... 105
20 Fast Flash Programming Interface (FFPI) .......................................... 123
21 AT91SAM7 Boot Program ................................................................... 143
22 Peripheral DMA Controller (PDC) ....................................................... 151
23 Advanced Interrupt Controller (AIC) .................................................. 161
24 Clock Generator ................................................................................... 187
19.1
19.2
19.3
20.1
20.2
20.3
21.1
21.2
21.3
21.4
21.5
21.6
22.1
22.2
22.3
22.4
23.1
23.2
23.3
23.4
23.5
23.6
23.7
23.8
24.1
24.2
24.3
24.4
Overview .......................................................................................................105
Functional Description ...................................................................................105
Embedded Flash Controller (EFC) User Interface .........................................115
Overview ........................................................................................................123
Parallel Fast Flash Programming ..................................................................124
Serial Fast Flash Programming .....................................................................136
Description .....................................................................................................143
Flow Diagram ................................................................................................143
Device Initialization with USB ........................................................................144
Device Initialization without USB ...................................................................144
SAM-BA Boot ................................................................................................145
Hardware and Software Constraints ..............................................................150
Overview ........................................................................................................151
Block Diagram ...............................................................................................151
Functional Description ...................................................................................152
Peripheral DMA Controller (PDC) User Interface .........................................154
Overview ........................................................................................................161
Block Diagram ...............................................................................................161
Application Block Diagram .............................................................................162
AIC Detailed Block Diagram ..........................................................................162
I/O Line Description .......................................................................................162
Product Dependencies ..................................................................................163
Functional Description ...................................................................................164
Advanced Interrupt Controller (AIC) User Interface .......................................176
Overview ........................................................................................................187
Slow Clock RC Oscillator ...............................................................................187
Main Oscillator ...............................................................................................187
Divider and PLL Block ...................................................................................189
6175K–ATARM–30-Aug-10