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Ultra-Low Power Arm® ARM926EJ-S™ Processor-Based MPU, 600 MHz, Camera, LCD, 2D Graphics, Dual 10/100 Ethernet, CAN, USB, QSPI, FLEXCOMs, AES, SHA
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SAM9X60
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46
Flexible Serial Communication Controller (FLEXCOM)
46.9
TWI Functional Description
Introduction
Features
Reference Document
1
Configuration Summary
2
Block Diagram
3
Signal Description
4
Microchip Recommended Power Management Solutions
5
Safety and Security Features
6
Package and Pinout
7
Memories
8
System Controller
9
Peripherals
10
ARM926EJ-S Processor
11
Debug and Test
12
Boot Strategies
13
System Controller Write Protection (SYSCWP)
14
General Purpose Backup Registers (GPBR)
15
Watchdog Timer (WDT)
16
Reset Controller (RSTC)
17
Real-Time Timer (RTT)
18
Real-Time Clock (RTC)
19
Shutdown Controller (SHDWC)
20
Periodic Interval Timer (PIT)
21
64-bit Periodic Interval Timer (PIT64B)
22
Debug Unit (DBGU)
23
OTP Memory Controller (OTPC)
24
Special Function Registers (SFR)
25
Bus Matrix (MATRIX)
26
Advanced Interrupt Controller (AIC)
27
Slow Clock Controller (SCKC)
28
Clock Generator
29
Power Management Controller (PMC)
30
Parallel Input/Output Controller (PIO)
31
External Bus Interface (EBI)
32
DDR-SDRAM Controller (MPDDRC)
33
SDRAM Controller (SDRAMC)
34
Static Memory Controller (SMC)
35
Programmable Multibit Error Correction Code Controller (PMECC)
36
Programmable Multibit ECC Error Location Controller (PMERRLOC)
37
DMA Controller (XDMAC)
38
LCD Controller (LCDC)
39
2D Graphics Engine (GFX2D)
40
Ethernet MAC 10/100 (EMAC)
41
USB Device High Speed Port (UDPHS)
42
USB Host High Speed Port (UHPHS)
43
Audio Class D Amplifier (CLASSD)
44
Inter-IC Sound Multi-Channel Controller (I2SMCC)
45
Synchronous Serial Controller (SSC)
46
Flexible Serial Communication Controller (FLEXCOM)
46.1
Description
46.2
Embedded Characteristics
46.3
Block Diagram
46.4
I/O Lines Description
46.5
Product Dependencies
46.6
Register Accesses
46.7
USART Functional Description
46.8
SPI Functional Description
46.9
TWI Functional Description
46.9.1
Transfer Format
46.9.2
Modes of Operation
46.9.3
Host Mode
46.9.4
Multi-Host Mode
46.9.5
Client Mode
46.9.6
TWI FIFOs
46.9.7
TWI Comparison Function on Received Character
46.9.8
Sniffer Mode
46.9.9
TWI Register Write Protection
46.10
Register Summary
47
Quad Serial Peripheral Interface (QSPI)
48
Secure Digital MultiMedia Card Controller (SDMMC)
49
Image Sensor Interface (ISI)
50
Controller Area Network (CAN)
51
Timer Counter (TC)
52
Pulse Width Modulation Controller (PWM)
53
Advanced Encryption Standard (AES)
54
Secure Hash Algorithm (SHA)
55
Triple Data Encryption Standard (TDES)
56
Random Number Generator (TRNG)
57
Analog-to-Digital Controller (ADC)
58
Electrical Characteristics
59
Mechanical Characteristics
60
Marking
61
Ordering Information
62
Revision History
Microchip Information
46.9 TWI Functional Description
