ATTINY87-15SZ Atmel, ATTINY87-15SZ Datasheet - Page 167
![MCU AVR 8K FLASH 15MZ 32-SOIC](/photos/6/80/68042/453-20-soic_sml.jpg)
ATTINY87-15SZ
Manufacturer Part Number
ATTINY87-15SZ
Description
MCU AVR 8K FLASH 15MZ 32-SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY167-15MD.pdf
(283 pages)
Specifications of ATTINY87-15SZ
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
20-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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15.4.5
15.4.6
15.4.6.1
7728G–AVR–06/10
Enable / Disable
LIN Commands
Rx Header / LIN Abort Function
Table 15-1.
Setting the LENA bit in LINCR register enables the LIN/UART controller. To disable the
LIN/UART controller, LENA bit must be written to 0. No wait states are implemented, so, the
disable command is taken into account immediately.
Clearing the LCMD[2] bit in LINCR register enables LIN commands.
As shown in
LINCR register are available (c.f.
This function (or state) is mainly the withdrawal mode of the controller.
When the controller has to execute a master task, this state is the start point before enabling a
Tx Header command.
When the controller has only to execute slave tasks, LIN header detection/acquisition is
enabled as background function. At the end of such an acquisition (Rx Header function), auto-
matically the appropriate flags are set, and in LIN 1.3, the LINDLR register is set with the
uncoded length value.
This state is also the start point before enabling the Tx or the Rx Response command.
A running function (i.e. Tx Header, Tx or Rx Response ) can be aborted by clearing
LCMD[1..0] bits in LINCR register
flag - LABORT - in LINERR register will be set to inform the other software tasks. No wait
states are implemented, so, the abort command is taken into account immediately.
Rx Header function is responsible for:
LENA
• The BREAK field detection,
• The hardware re-synchronization analyzing the SYNCH field,
• The reception of the PROTECTED IDENTIFIER field, the parity control and the update of
• The starting of the Frame_Time_Out,
• The checking of the LIN communication integrity.
the LINDLR register in case of LIN 1.3,
0
1
LCMD[2]
0
1
x
Table 15-1 on page
LIN/UART Command List
LCMD[1]
0
1
0
1
0
1
x
LCMD[0]
Figure 15-5 on page
(See ”Break-in-data” on page
167, four functions controlled by the LCMD[1..0] bits of
0
1
0
1
0
0
1
1
x
Rx Header - LIN Abort
Disable peripheral
Rx Response
Tx Response
Byte transfer
Command
Full duplex
Tx Header
Rx Byte
Tx Byte
166).
ATtiny87/ATtiny167
177.). In this case, an abort
(LINDLR: read only register)
LCMD[2..0]=000 after Rx
LCMD[2..0]=000 after Tx
LCMD[2..0]=000 after Tx
no CRC, no Time out
LTXDL=LRXDL=0
LIN Withdrawal
Comment
167
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