AT91FR40162-CI Atmel, AT91FR40162-CI Datasheet - Page 6

• Manufacturer Part Number: AT91FR40162-CI
• Description: IC ARM7 MCU 2M FLASH 121 PBGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91FR40162-CI

• 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
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

5. Architectural Overview
5.1
5.2
6
Memories
Peripherals
AT91FR40162
The AT91FR40162 integrates Atmel’s AT91R40008 ARM Thumb processor and an
AT49BV1604A/1614A 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 inter-
nally 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 AT91FR40162 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 AT91FR40162 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 per-
formance 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 AT91FR40162 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 AT91FR40162 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 AT91FR40162 integrates resident boot software called AT91 Flash Uploader software in
the encapsulated Flash. The AT91 Flash Uploader software is able to upload program applica-
tion software into its Flash memory.
The AT91FR40162 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
2632D–ATARM–15-Sep-05