ATtiny88 Atmel Corporation, ATtiny88 Datasheet - Page 120

• Manufacturer Part Number: ATtiny88
• Manufacturer: Atmel Corporation

Specifications of ATtiny88

• Flash (kbytes): 8 Kbytes
• Pin Count: 32
• Max. Operating Frequency: 12 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 28
• Ext Interrupts: 28
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• 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): 64
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• 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: 4
• Input Capture Channels: 1
• Pwm Channels: 2
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

14. SPI – Serial Peripheral Interface
14.1
14.2
120
Features
Overview
ATtiny48/88
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The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer between the
ATtiny48/88 and peripheral devices or between several AVR devices.
Figure 14-1. SPI Block Diagram
Note:
Full-duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
/2/4/8/16/32/64/128
1. Refer to
SPI STATUS REGISTER
DIVIDER
SELECT
XTAL
SPI CONTROL
Figure 1-1 on page
SPI CLOCK (MASTER)
SPI INTERRUPT
REQUEST
(1)
MSTR
SPE
2, and
8
MSB
INTERNAL
DATA BUS
8
8 BIT SHIFT REGISTER
Table 10-5 on page 69
READ DATA BUFFER
8
SPI CONTROL REGISTER
CLOCK
LOGIC
CLOCK
LSB
for SPI pin placement.
M
M
M
S
S
S
8008H–AVR–04/11
MISO
MOSI
SCK
SS