AT90PWM216-16SUR Atmel, AT90PWM216-16SUR Datasheet - Page 297
AT90PWM216-16SUR
Manufacturer Part Number
AT90PWM216-16SUR
Description
MCU AVR 16K FLASH 16MHZ 24SOIC
Manufacturer
Atmel
Series
AVR® 90PWM Lightingr
Datasheet
1.AT90PWM216-16SU.pdf
(359 pages)
Specifications of AT90PWM216-16SUR
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
19
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 1x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
24-SOIC (7.5mm Width)
Processor Series
AT90PWMx
Core
AVR8
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRFBKIT, ATAVRISP2
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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25.9.2
25.9.3
7710E–AVR–08/10
Data Polling Flash
Data Polling EEPROM
When a page is being programmed into the Flash, reading an address location within the page
being programmed will give the value 0xFF. At the time the device is ready for a new page, the
programmed value will read correctly. This is used to determine when the next page can be writ-
ten. Note that the entire page is written simultaneously and any address within the page can be
used for polling. Data polling of the Flash will not work for the value 0xFF, so when programming
this value, the user will have to wait for at least t
a chip-erased device contains 0xFF in all locations, programming of addresses that are meant to
contain 0xFF, can be skipped. See
When a new byte has been written and is being programmed into EEPROM, reading the
address location being programmed will give the value 0xFF. At the time the device is ready for
a new byte, the programmed value will read correctly. This is used to determine when the next
byte can be written. This will not work for the value 0xFF, but the user should have the following
in mind: As a chip-erased device contains 0xFF in all locations, programming of addresses that
are meant to contain 0xFF, can be skipped. This does not apply if the EEPROM is re-pro-
grammed without chip erasing the device. In this case, data polling cannot be used for the value
0xFF, and the user will have to wait at least t
Table 25-15
Table 25-15. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Symbol
t
t
t
4. The Flash is programmed one page at a time. The memory page is loaded one byte at
5. The EEPROM array is programmed one byte at a time by supplying the address and
6. Any memory location can be verified by using the Read instruction which returns the
7. At the end of the programming session, RESET can be set high to commence normal
8. Power-off sequence (if needed):
WD_FLASH
WD_EEPROM
WD_ERASE
a time by supplying the 6 LSB of the address and data together with the Load Program
Memory Page instruction. To ensure correct loading of the page, the data low byte must
be loaded before data high byte is applied for a given address. The Program Memory
Page is stored by loading the Write Program Memory Page instruction with the 8 MSB
of the address. If polling is not used, the user must wait at least t
the next page. (See
the Flash write operation completes can result in incorrect programming.
data together with the appropriate Write instruction. An EEPROM memory location is
first automatically erased before new data is written. If polling is not used, the user must
wait at least t
erased device, no 0xFFs in the data file(s) need to be programmed.
content at the selected address at serial output MISO.
operation.
Set RESET to “1”.
Turn V
CC
for t
power off.
WD_EEPROM
WD_EEPROM
Table
value.
before issuing the next byte. (See
25-15.) Accessing the serial programming interface before
Table 25-15
WD_EEPROM
WD_FLASH
for t
WD_FLASH
Minimum Wait Delay
before programming the next byte. See
before programming the next page. As
AT90PWM216/316
value.
4.5 ms
3.6 ms
9.0 ms
Table
WD_FLASH
25-15.) In a chip
before issuing
297
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