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CEC (Consumer Electronics Control)
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Overview
CEC functionality provides control of AV equipments using the HDMI (High-Definition Multimedia Interface) standard. The increasing availability of digital services and digital media content has seen a rapid increase in new AV equipments, including digital TV and HDTV, Personal Video recorders incorporating hard disk drives and Blu-Ray players. The majority of new digital AV equipment now includes interconnectivity, such as linked or collective control functions. It has become the norm to include link functions designed to reduce power consumption (eco-friendly functions).
Renesas offers the 78K0/78K0R-C Series, the R8C Family of MCUs, which implement CEC transmit/receive circuit functions in software and the M16C/65 Group of MCUs, which integrate transmit/receive circuits in hardware. Renesas also supplies sample software for this functionality, enabling customers to easily design CEC into their end equipment.
System Block Diagram
Recommended Products
| Block | Semiconductor device | Recommended products | Features, etc. |
|---|---|---|---|
| Control MCU | MCU | 78K0/Kx2-C | Built-in hardware for CEC transmit/receive |
| 78K0R/Kx3-C | |||
| M16C/63, 64A, 65 | |||
| M16C Family, R8C Family | Can CEC transmit/receive by software | ||
| Memory | EEPROM | R1EX24xxx Series | I2C bus interface *1 |
| R1EX25xxx Series | SPIbus interface *2 | ||
| LSI for IC Decoder | Image processing ASSP | EMMASeries | MPEG Encode/Decode |
| MCU peripheral | Reset IC | RNA519xx Series | Variable detection voltage |
| General use, surge absorption, circuit protection, etc. | Zener diodes | HZM6.2ZMWA, other | 3 terminals(2devices) High ESD tolerance optimal for use in surge absorption |
| NNCDxxDA Series | High ESD tolerance optimal for use in surge absorption | ||
| RDxxS Series | 2-terminal face-mount outline | ||
| RKZ6.8Z4MFAKT | 5 terminals (4 devices) low capacitance (4 pF) Low capacitance (4 pF) optimal in use for surge absorption for USB ports | ||
| RKZxxKG/KJ Series | 2 terminals SMD High ESD tolerance optimal for use in surge absorption | ||
| Switching diodes | HSC/D119, HSB2836/8 | 2-3 terminals SMD | |
| RKH0145/0160KU Series | 2terminals SMD High voltage tolerance optimal for surge absorption and high-voltage rectification | ||
| Schottky diodes | RKR, HRW Series | 2-3 terminals SMD Small package, low capacitance, large current type | |
| Main power | Photocoupler (standard) | PS25xx Series PS27xx Series PS28xx Series | High isolation voltage (5 kV r.m.s.), 4p-DIP High isolation voltage (3.75 kV r.m.s.), 4p-SOP High isolation voltage (2.5 kV r.m.s.), 4p-SSOP |
| Audio | Sound multiplex decoder | R2A15504/5SP | |
| Digital delay | R2S15901SP | ||
| Audio signal processor | R2A15905FP | Built-in headphone amp | |
| R2A15908SP | |||
| Digital amp | R2A15112FP | 15W×2 ch: single end | |
| R2A15120FA | 15W×2 ch: BTL (Built-in limiter) | ||
| R2A15122/3FP | 10W×2 ch (4 W×2 ch): single end | ||
| R2A15126FP * |
* : = Under development
*1 I2C : Inter-Integrated Circuit
*2 SPI : Serial Peripheral Interface
Related Software
|
Title
| Document No. |
|---|---|
| M16C family (on-chip CEC circuit) hardware CEC sample driver * | - |
| M16C family (M16C, R8C) software CEC sample driver * | - |
*：Please contact your sales representative or contact us directly.
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