ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 178
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ATtiny87
Manufacturer Part Number
ATtiny87
Description
Manufacturer
Atmel Corporation
Specifications of ATtiny87
Flash (kbytes)
8 Kbytes
Pin Count
20
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
Hardware Qtouch Acquisition
No
Max I/o Pins
16
Ext Interrupts
16
Usb Speed
No
Usb Interface
No
Spi
2
Twi (i2c)
1
Uart
1
Lin
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
11
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
512
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
2
Output Compare Channels
3
Input Capture Channels
1
Pwm Channels
9
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
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15.5.13
15.5.14
178
ATtiny87/ATtiny167
Interrupts
Message Filtering
LINERR.6
LINERR.1
LINERR.7
LINERR.5
LINERR.4
LINERR.3
LINERR.2
LINERR.0
CHECKSUM
Frame identifiers 60 (0x3C) to 61 (0x3D) shall always use classic checksum.
As shown in
are combined to drive two interrupts. Each of these flags have their respective enable interrupt
bit in LINENIR register.
(see
176).
Figure 15-13. LIN Interrupt Mapping
Message filtering based upon the whole identifier is not implemented. Only a status for frame
headers having 0x3C, 0x3D, 0x3E and 0x3F as identifier is available in the LINSIR register.
Table 15-4.
Section 15.5.8 “xxOK Flags” on page 175
LABORT
LOVERR
LTOERR
LSERR
LPERR
LCERR
LBERR
LFERR
=
Figure 15-13 on page
255
Frame Status
–
LIDST[2:0]
⎛
⎜
⎜
⎝
unsigned char
0xx
100
101
110
111
b
b
b
b
b
LINSIR.3
LINSIR.2
LINSIR.1
LINSIR.0
⎛
⎜
⎜
⎝
∑
n
0
LRXOK
LTXOK
LIDOK
LERR
178, the four communication flags of the LINSIR register
DATA
n
⎞
⎟
⎟
⎠
LENERR
LINENIR.3
+
unsigned char
and
LENIDOK
LINENIR.2
Section 15.5.9 “xxERR Flags” on page
⎛
⎜
⎜
⎝
⎛
⎜
⎜
⎝
∑
LENTXOK
No specific identifier
n
0
60 (0x3C) identifier
61 (0x3D) identifier
62 (0x3E) identifier
63 (0x3F) identifier
LINENIR.1
DATA
Frame Status
n
⎞
⎟
⎟
⎠
LENRXOK
LINENIR.0
»
8
⎞
⎟
⎟
⎠
⎞
⎠
8265B–AVR–09/10
LIN ERR
LIN TC
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