AT91SAM7S128C-AU Atmel, AT91SAM7S128C-AU Datasheet - Page 97

• Manufacturer Part Number: AT91SAM7S128C-AU
• Description: IC ARM7 MCU 32BIT 128K 64LQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM7S128C-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: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 32K 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: -
• Other names: AT91SAM7S128-AU-001; AT91SAM7S128AU001; AT91SAM7S128AU001

18. Memory Controller (MC)
18.1
18.2
Figure 18-1. Memory Controller Block Diagram
6175K–ATARM–30-Aug-10
Overview
Block Diagram
ARM7TDMI
Processor
Peripheral
Controller
DMA
The Memory Controller (MC) manages the ASB bus and controls accesses requested by the
masters, typically the ARM7TDMI processor and the Peripheral DMA Controller. It features a
simple bus arbiter, an address decoder, an abort status, a misalignment detector and an
Embedded Flash Controller.
Abort
Peripheral N
Peripheral 0
Peripheral 1
Memory Controller
Arbiter
Bus
ASB
Misalignment
Interface
Detector
Status
Abort
User
AT91SAM7S Series Preliminary
Bridge
APB
APB
Decoder
Address
Embedded
Controller
Flash
From Master
to Slave
Internal
Internal
Flash
RAM
97