ATTINY5-MAH Atmel, ATTINY5-MAH Datasheet - Page 107
![IC MCU AVR 512B FLASH 8UDFN](/photos/12/32/123206/8-udfn-8ma4_sml.jpg)
ATTINY5-MAH
Manufacturer Part Number
ATTINY5-MAH
Description
IC MCU AVR 512B FLASH 8UDFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY5-MAH
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Peripherals
POR, PWM, WDT
Number Of I /o
4
Program Memory Size
512B (256 x 16)
Program Memory Type
FLASH
Ram Size
32 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 4x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-UFDFN Exposed Pad
Core
AVR8
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
Lead Free Status / Rohs Status
Details
- Current page: 107 of 169
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14.7.3
8127D–AVR–02/10
TPISR – Tiny Programming Interface Status Register
• Bits 2:0 – GT[2:0]: Guard Time
These bits specify the number of additional IDLE bits that are inserted to the idle time when
changing from reception mode to transmission mode. Additional delays are not inserted when
changing from transmission mode to reception.
The total idle time when changing from reception to transmission mode is Guard Time plus two
IDLE bits.
Table 14-13. Guard Time Settings
The default Guard Time is 128 IDLE bits. To speed up the communication, the Guard Time
should be set to the shortest safe value.
• Bits 7:2, 0 – Res: Reserved Bits
These bits are reserved and will always read zero.
• Bit 1 – NVMEN: Non-Volatile Memory Programming Enabled
NVM programming is enabled when this bit is set. The external programmer can poll this bit to
verify the interface has been successfully enabled.
NVM programming is disabled by writing this bit to zero.
Bit
CSS: 0x00
Read/Write
Initial Value
GT2
0
0
0
0
1
1
1
1
Table 14-13
R
7
–
0
shows the available Guard Time settings.
R
6
–
0
GT1
0
0
1
1
0
0
1
1
R
5
–
0
R
4
–
0
GT0
0
1
0
1
0
1
0
1
R
3
–
0
Guard Time (Number of IDLE bits)
+128 (default value)
+64
+32
+16
+8
+4
+2
+0
R
2
–
0
NVMEN
R/W
1
0
ATtiny4/5/9/10
R
0
–
0
TPIPCR
107
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