ATMEGA128-16AI Atmel, ATMEGA128-16AI Datasheet - Page 278

IC AVR MCU 128K 16MHZ 64-TQFP

ATMEGA128-16AI

Manufacturer Part Number
ATMEGA128-16AI
Description
IC AVR MCU 128K 16MHZ 64-TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA128-16AI

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-TQFP, 64-VQFP
For Use With
ATSTK501 - ADAPTER KIT FOR 64PIN AVR MCU
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
Q1167170A

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA128-16AI
Manufacturer:
FSC
Quantity:
7 600
Part Number:
ATMEGA128-16AI
Manufacturer:
Atmel
Quantity:
10 000
Part Number:
ATMEGA128-16AI
Manufacturer:
TI
Quantity:
175
Part Number:
ATMEGA128-16AI
Manufacturer:
ATMEL
Quantity:
1 896
Part Number:
ATMEGA128-16AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Addressing the
Flash During Self-
Programming
278
ATmega128
or if no SPM instruction is executed within four clock cycles. The CPU is halted during the entire
page write operation if the NRWW section is addressed.
• Bit 0 – SPMEN: Store Program Memory Enable
This bit enables the SPM instruction for the next four clock cycles. If written to one together with
either RWWSRE, BLBSET, PGWRT’ or PGERS, the following SPM instruction will have a spe-
cial meaning, see description above. If only SPMEN is written, the following SPM instruction will
store the value in R1:R0 in the temporary page buffer addressed by the Z-pointer. The LSB of
the Z-pointer is ignored. The SPMEN bit will auto-clear upon completion of an SPM instruction,
or if no SPM instruction is executed within four clock cycles. During page erase and page write,
the SPMEN bit remains high until the operation is completed.
Writing any other combination than “10001”, “01001”, “00101”, “00011” or “00001” in the lower
five bits will have no effect.
The Z-pointer together with RAMPZ are used to address the SPM commands. For details on
how to use the RAMPZ, see “RAM Page Z Select Register – RAMPZ” on page 13.
Since the Flash is organized in pages (see
treated as having two different sections. One section, consisting of the least significant bits, is
addressing the words within a page, while the most significant bits are addressing the pages.
This is shown in
independently. Therefore it is of major importance that the Boot Loader software addresses the
same page in both the page erase and page write operation. Once a programming operation is
initiated, the address is latched and the Z-pointer/RAMPZ can be used for other operations.
The only SPM operation that does not use the Z-pointer/RAMPZ is setting the Boot Loader Lock
bits. The content of the Z-pointer/RAMPZ is ignored and will have no effect on the operation.
The (E)LPM instruction does also use the Z-pointer/RAMPZ to store the address. Since this
instruction addresses the Flash byte by byte, also the LSB (bit Z0) of the Z-pointer is used.
Bit
ZH (R31)
ZL (R30)
Z15
15
Z7
7
Figure
Z14
134. Note that the page erase and page write operations are addressed
14
Z6
6
Z13
13
Z5
5
Z12
12
Z4
4
Table 123 on page
Z11
11
Z3
3
Z10
10
Z2
2
291), the program counter can be
Z9
Z1
9
1
Z8
Z0
8
0
2467V–AVR–02/11

Related parts for ATMEGA128-16AI