ATMEGA128-16MN Atmel, ATMEGA128-16MN Datasheet - Page 25
![MCU AVR 128KB FLASH 16MHZ 64QFN](/photos/12/13/121326/313-64-qfn_sml.jpg)
ATMEGA128-16MN
Manufacturer Part Number
ATMEGA128-16MN
Description
MCU AVR 128KB FLASH 16MHZ 64QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA128-16MN
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
EBI/EMI, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Eeprom Size
4K x 8
Ram Size
4K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-MLF®, 64-QFN
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
4 KB
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCUATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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I/O Memory
External Memory
Interface
Overview
2467V–AVR–02/11
ation is in progress, the write operation will be completed provided that the power supply voltage
is sufficient.
The I/O space definition of the ATmega128 is shown in
All Atmel
may be accessed by the LD/LDS/LDD and ST/STS/STD instructions, transferring data between
the 32 general purpose working registers and the I/O space. I/O registers within the address
range $00 - $1F are directly bit-accessible using the SBI and CBI instructions. In these registers,
the value of single bits can be checked by using the SBIS and SBIC instructions. Refer to the
instruction set section for more details. When using the I/O specific commands IN and OUT, the
I/O addresses $00 - $3F must be used. When addressing I/O registers as data space using LD
and ST instructions, $20 must be added to these addresses. The ATmega128 is a complex
microcontroller with more peripheral units than can be supported within the 64 location reserved
in Opcode for the IN and OUT instructions. For the Extended I/O space from $60 - $FF in SRAM,
only the ST/STS/STD and LD/LDS/LDD instructions can be used. The Extended I/O space is
replaced with SRAM locations when the ATmega128 is in the ATmega103 compatibility mode.
For compatibility with future devices, reserved bits should be written to zero if accessed.
Reserved I/O memory addresses should never be written.
Some of the status flags are cleared by writing a logical one to them. Note that the CBI and SBI
instructions will operate on all bits in the I/O register, writing a one back into any flag read as set,
thus clearing the flag. The CBI and SBI instructions work with registers $00 to $1F only.
The I/O and peripherals control registers are explained in later sections.
With all the features the External Memory Interface provides, it is well suited to operate as an
interface to memory devices such as External SRAM and Flash, and peripherals such as LCD-
display, A/D, and D/A. The main features are:
•
•
•
•
When the eXternal MEMory (XMEM) is enabled, address space outside the internal SRAM
becomes available using the dedicated External Memory pins (see
on page
shown in
Four different wait-state settings (including no wait-state).
Independent wait-state setting for different extErnal Memory sectors (configurable sector size).
The number of bits dedicated to address high byte is selectable.
Bus-keepers on data lines to minimize current consumption (optional).
®
72,
Figure
AVR
Table 33 on page
®
ATmega128 I/Os and peripherals are placed in the I/O space. All I/O locations
11.
76, and
Table 45 on page
“Register Summary” on page
84). The memory configuration is
Figure 1 on page
ATmega128
2,
362.
Table 27
25
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