ASI4U datasheet(4/71 Pages) RENESAS

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ASI4U / ASI4U-E / ASI4U-F Datasheet

January 26, 2016

4.6.

Parameter Port and PST Pin ................................................................................................................... 31

4.6.1.

Slave Mode ....................................................................................................................................... 31

4.6.2.

Parameter Multiplex Mode ................................................................................................................ 32

4.6.3.

Special Function of P0, P1 and P2 ................................................................................................... 32

4.6.4.

Master, Repeater, and Monitor Modes ............................................................................................. 33

4.7.

Data Port and DSR Pin............................................................................................................................ 34

4.7.1.

Slave Mode ....................................................................................................................................... 34

4.7.2.

Input Data Pre-processing ................................................................................................................ 35

4.7.3.

Fixed Output Data Driving................................................................................................................. 38

4.7.4.

Synchronous Data I/O Mode............................................................................................................. 39

4.7.5.

Support of 4I/4O Processing in Extended Address Mode, Profile 7.A.x.E ....................................... 40

4.7.6.

Safety Mode Operation ..................................................................................................................... 41

4.7.7.

Master, Repeater, and Monitor Modes ............................................................................................. 45

4.7.8.

Special Function of DSR ................................................................................................................... 46

4.8.

Fault Indication Input Pin FID .................................................................................................................. 46

4.8.1.

Slave Mode ....................................................................................................................................... 46

4.8.2.

Master and Monitor Modes ............................................................................................................... 46

4.9.

LED Outputs ............................................................................................................................................ 47

4.9.1.

Slave Mode ....................................................................................................................................... 47

4.9.2.

Communication via Addressing Channel .......................................................................................... 48

4.9.3.

Master, Repeater, and Monitor Modes ............................................................................................. 48

4.10. Oscillator Pins OSC1, OSC2 ................................................................................................................... 49

4.11. IC Reset................................................................................................................................................... 49

4.11.1. Power-On Reset................................................................................................................................ 50

4.11.2. Logic Controlled Reset...................................................................................................................... 51

4.11.3. External Reset................................................................................................................................... 51

4.12. UART ....................................................................................................................................................... 52

4.12.1. AS-i Input Channel ............................................................................................................................ 52

4.12.2. Addressing Channel.......................................................................................................................... 54

4.13. Main State Machine ................................................................................................................................. 55

4.14. Status Registers ...................................................................................................................................... 56

4.15. Communication Monitor/Watchdog ......................................................................................................... 56

4.16. Toggle Watchdog for 4I/4O Processing in Extended Address Mode ...................................................... 57

4.17. Write Protection of ID_Code_Extension_1 .............................................................................................. 57

4.18. Power Supply........................................................................................................................................... 58

4.18.1. Voltage Output Pins UOUT and U5R ............................................................................................... 59

4.18.2. Input Impedance (AS-Interface Bus Load) ....................................................................................... 59

4.19. Thermal and Overload Protection............................................................................................................ 60

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