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I/O Controller
Overview
- BC-Link:Yes
- Parallel Port:No
- GPIO Pins:16
- Keyboard Scan Matrix:19x8
- PS/2 Ports:2
- Operating Voltage [V]:3.3V
- Op Temp Max:70
- Op Temp Min:0
- SM Bus:Yes
- Interface:BC-Link
- BC-Link™ Slave Interface to Host EC
- 3-pin point-to-point communication link to Embedded Controller
- Optional SMBus Slave Interface to Host EC
- BC-Link/SMBus protocol autodetect
- Strap pin selects between two slave addresses at POR
- Dynamically programmed slave address after POR
- BC-Link Companion Switch, ECE1119 only
- 3 External Downstream Ports for additional BC-Link companion connectivity
- SMBus Switch, ECE1119 only
- External Ports for connectivity to additional 3 Bus segments
- Keyboard Scan Matrix
- Up to 23x8 Keyboard Scan Matrix in ECE1119
- Up to 19x8 Keyboard Scan Matrix in ECE1117
- LED Output Pins
- 9 LED Output Pins in ECE1119 – 6 with 20mA current sink – 3 with 4mA current sink
- 7 LED Output Pins in ECE1117 – 4 with 20mA current sink – 3 with 4mA current sink
- Multiple Clock Rates
- Breathe capability
- Open Drain
- 5V tolerant
- All can be synchronized
- General Purpose I/O Pins
- 20 General Purpose I/O Pins ECE1119
- 16 General Purpose I/O Pins ECE1117
- All are BC Bus addressable I/O Pins
- All are Maskable Hardware Wake-Event Capable
- All are Programmable Open-Drain/Push-Pull
The
typical usage model is to locate the ECE1119/ECE1117 in the keyboard
assembly.
By
mounting the ECE1119/ECE1117 onto the keyboard assembly, the keyboard and touchpad/point stick
PS/2 signals and the backlight PWMs are routed from the keyboard to
the motherboard over a single BC-Link connection. In all other notebook
designs without BC companion device, the signals from the keyboard matrix,
PS/2 and LED are routed to the motherboard via a wide ribbon extension for
the keyboard switch circuit.
ECE1119
communicates to the upstream host via BC-Link or SMBus and provides up to
three downstream BC-LinkTM or SMBus ports to permit
communication between the upstream host and downstream companion devices.
Family parts
ECE1117-HZH
ECE1117-HZH-1
ECE1117-HZH-1-TR
ECE1117-HZH-TR
ECE1117-Y3-1-TR
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["developmentenvironment","Development Environment"] ,
["emulators","Emulator and Debuggers"] ,
["demoevaluationboards","Demo & Evaluation Boards"] ,
["programmerrelations","Programmers"] ,
["thirdpartytools","3rd Party Tools"] ,
["legacy","Legacy"] ,
["softwarelibraries","Library and Firmware"]
referencedesigns,Reference Designs:
codeexamples,Code Examples:
ibisboarddesignfiles,Board Design Files: