ATtiny13 Atmel Corporation, ATtiny13 Datasheet - Page 106

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ATtiny13

Manufacturer Part Number
ATtiny13
Description
Manufacturer
Atmel Corporation
Datasheets

Specifications of ATtiny13

Flash (kbytes)
1 Kbytes
Pin Count
8
Max. Operating Frequency
20 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
6
Usb Speed
No
Usb Interface
No
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
0.06
Eeprom (bytes)
64
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8 to 5.5
Operating Voltage (vcc)
1.8 to 5.5
Fpu
No
Mpu / Mmu
no / no
Timers
1
Output Compare Channels
2
Pwm Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes

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17.6.1
106
ATtiny13
Serial Programming Algorithm
When writing serial data to the ATtiny13, data is clocked on the rising edge of SCK.
When reading data from the ATtiny13, data is clocked on the falling edge of SCK. See
18-5 on page 121
To program and verify the ATtiny13 in the Serial Programming mode, the following sequence is
recommended (see four byte instruction formats in
1. Power-up sequence:
2. Wait for at least 20 ms and enable serial programming by sending the Programming
3. The serial programming instructions will not work if the communication is out of syn-
4. The Flash is programmed one page at a time. The memory page is loaded one byte at
5. A: 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):
Apply power between V
tems, the programmer can not guarantee that SCK is held low during power-up. In this
case, RESET must be given a positive pulse after SCK has been set to “0”. The pulse
duration must be at least t
page
Enable serial instruction to pin MOSI.
chronization. When in sync. the second byte (0x53), will echo back when issuing the
third byte of the Programming Enable instruction. Whether the echo is correct or not, all
four bytes of the instruction must be transmitted. If the 0x53 did not echo back, give
RESET a positive pulse and issue a new Programming Enable command.
a time by supplying the 4 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 5 MSB
of the address. If polling (
before issuing the next page. (See
gramming interface before 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 (
the user must wait at least t
page
grammed.
B: The EEPROM array is programmed one page at a time. The Memory page is loaded
one byte at a time by supplying the 2 LSB of the address and data together with the
Load EEPROM Memory Page instruction. The EEPROM Memory Page is stored by
loading the Write EEPROM Memory Page Instruction with the 4 MSB of the address.
When using EEPROM page access only byte locations loaded with the Load EEPROM
Memory Page instruction is altered. The remaining locations remain unchanged. If poll-
ing (
next page (See
file(s) need to be programmed.
content at the selected address at serial output MISO.
operation.
Set RESET to “1”.
Turn V
RDY/BSY
119) plus two CPU clock cycles.
107.) In a chip erased device, no 0xFFs in the data file(s) need to be pro-
CC
power off.
and
) is not used, the used must wait at least t
Table 17-6 on page
Figure 18-4 on page 121
CC
RDY/BSY
RST
and GND while RESET and SCK are set to “0”. In some sys-
WD_EEPROM
(miniumum pulse widht of RESET pin, see
) is not used, the user must wait at least t
Table 17-8 on page
104). In a chip erased device, no 0xFF in the data
before issuing the next byte. (See
for timing details.
Table 17-9 on page
WD_EEPROM
107.) Accessing the serial pro-
RDY/BSY
107):
before issuing the
) is not used,
Table 18-4 on
Table 17-8 on
WD_FLASH
2535J–AVR–08/10
Figure

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