AT91FR40162SB-CU-999 Atmel, AT91FR40162SB-CU-999 Datasheet - Page 8
AT91FR40162SB-CU-999
Manufacturer Part Number
AT91FR40162SB-CU-999
Description
IC MCU 32BIT RISC 121BGA
Manufacturer
Atmel
Series
AT91SAMr
Specifications of AT91FR40162SB-CU-999
Core Processor
ARM7
Core Size
16/32-Bit
Speed
75MHz
Connectivity
EBI/EMI, UART/USART
Peripherals
WDT
Number Of I /o
32
Program Memory Size
2MB (1M x 16)
Program Memory Type
FLASH
Ram Size
256K x 8
Voltage - Supply (vcc/vdd)
1.65 V ~ 1.95 V
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
121-BGA
Data Bus Width
32 bit
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / Rohs Status
Details
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Manufacturer
Quantity
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6. Architectural Overview
6.1
6.2
8
Memories
Peripherals
AT91FR40162SB
The AT91FR40162SB integrates Atmel’s AT91R40008 ARM Thumb processor and a 2-Mbyte
(16-Mbit) Flash memory die in a single compact 121-ball BGA package. The address, data and
control signals, except the Flash memory enable, are internally interconnected.
The AT91R40008 architecture consists of two main buses, the Advanced System Bus (ASB)
and the Advanced Peripheral Bus (APB). Designed for maximum performance and controlled by
the memory controller, the ASB interfaces the ARM7TDMI processor with the on-chip 32-bit
SRAM memory, the External Bus Interface (EBI) connected to the encapsulated Flash and the
AMBA
peripherals and optimized for low power consumption.
The AT91FR40162SB implements the ICE port of the ARM7TDMI processor on dedicated pins,
offering a complete, low-cost and easy-to-use debug solution for target debugging.
The AT91FR40162SB embeds 256K bytes of internal SRAM. The internal memory is directly
connected to the 32-bit data bus and is single-cycle accessible. This provides maximum perfor-
mance of 67 MIPS at 75 MHz by using the ARM instruction set of the processor, minimizing
system power consumption and improving on the performance of separate memory solutions.
The AT91FR40162SB features an External Bus Interface (EBI), which enables connection of
external memories and application-specific peripherals. The EBI supports 8- or 16-bit devices
and can use two 8-bit devices to emulate a single 16-bit device. The EBI implements the early
read protocol, enabling faster memory accesses than standard memory interfaces.
The AT91FR40162SB encapsulates a Flash memory organized as 1024K 16-bit words,
accessed via the EBI. A 16-bit Thumb instruction can be loaded from Flash memory in a single
access. Separate MCU and Flash memory reset inputs (NRST and NRSTF) are provided for
maximum flexibility. The user is thus free to tailor the reset operation to the application.
The AT91FR40162SB integrates resident boot software called AT91 Flash Memory Uploader
software in the encapsulated Flash. The AT91 Flash Memory Uploader software is able to
upload program application software into its Flash memory.
The AT91FR40162SB integrates several peripherals, which are classified as system or user
peripherals.
All on-chip peripherals are 32-bit accessible by the AMBA Bridge, and can be programmed with
a minimum number of instructions. The peripheral register set is composed of control, mode,
data, status and enable/disable/status registers.
An on-chip Peripheral Data Controller (PDC) transfers data between the on-chip USARTs and
on- and off-chip memory address space without processor intervention. Most importantly, the
PDC removes the processor interrupt handling overhead, making it possible to transfer up to
64K contiguous bytes without reprogramming the start address, thus increasing the perfor-
mance of the microcontroller, and reducing the power consumption.
™
Bridge. The AMBA Bridge drives the APB, which is designed for accesses to on-chip
6410B–ATARM–12-Jan-10
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