Cirrus Logic CS8427 - Manual (Page 2)

CS8427
2 DS477F5
TABLE OF CONTENTS
1. CHARACTERISTICS AND SPECIFICATIONS ......................................................................... 5
SPECIFIED OPERATING CONDITIONS ................................................................................. 5
ABSOLUTE MAXIMUM RATINGS ........................................................................................... 5
DC ELECTRICAL CHARACTERISTICS................................................................................... 6
DIGITAL INPUT CHARACTERISTICS ..................................................................................... 6
DIGITAL INTERFACE SPECIFICATIONS................................................................................ 6
TRANSMITTER CHARACTERISTICS ..................................................................................... 6
SWITCHING CHARACTERISTICS .......................................................................................... 7
SWITCHING CHARACTERISTICS - SERIAL AUDIO PORTS................................................. 8
SWITCHING CHARACTERISTICS - CONTROL PORT - SPI MODE...................................... 9
SWITCHING CHARACTERISTICS - CONTROL PORT - I²C MODE..................................... 10
2. TYPICAL CONNECTION DIAGRAM ...................................................................................... 11
3. GENERAL DESCRIPTION ..................................................................................................... 12
3.1 Audio Input/Output Ports ................................................................................................. 12
3.2 Serial Control Port ............................................................................................................ 12
3.3 Channel Status and User bit Memory .............................................................................. 12
3.4 AES3 and S/PDIF Standards Documents ........................................................................ 13
4. DATA I/O FLOW AND CLOCKING OPTIONS ....................................................................... 13
5. THREE-WIRE SERIAL AUDIO PORTS ................................................................................. 15
6. AES3 RECEIVER .................................................................................................................... 16
6.1 OMCK System Clock Mode ............................................................................................. 16
6.2 PLL, Jitter Attenuation, and Varispeed ............................................................................ 16
6.3 Error Reporting and Hold Function .................................................................................. 16
6.4 Channel Status Data Handling ......................................................................................... 16
6.5 User Data Handling .......................................................................................................... 17
6.6 Non-Audio Auto Detection ............................................................................................... 17
7. AES3 TRANSMITTER ........................................................................................................... 18
7.1 Transmitted Frame and Channel Status Boundary Timing .............................................. 18
7.2 TXN and TXP Drivers ...................................................................................................... 18
8. MONO MODE OPERATION ................................................................................................... 19
8.1 Receiver Mono Mode ....................................................................................................... 19
8.2 Transmitter Mono Mode ................................................................................................... 19
9. CONTROL PORT DESCRIPTION AND TIMING .................................................................... 25
9.1 SPITM Mode .................................................................................................................... 25
9.2 I²C Mode .......................................................................................................................... 25
9.3 Interrupts .......................................................................................................................... 25
10. CONTROL PORT REGISTER SUMMARY ........................................................................... 27
10.1 Memory Address Pointer (MAP) ..................................................................................... 27
11. CONTROL PORT REGISTER BIT DEFINITIONS ................................................................ 28
11.1 Control 1 (01h) ................................................................................................................ 28
11.2 Control 2 (02h) ................................................................................................................ 28
11.3 Data Flow Control (03h).................................................................................................. 29
11.4 Clock Source Control (04h)............................................................................................. 30
11.5 Serial Audio Input Port Data Format (05h)...................................................................... 31
11.6 Serial Audio Output Port Data Format (06h)................................................................... 31
11.7 Interrupt 1 Status (07h) (Read Only)............................................................................... 32
11.8 Interrupt 2 Status (08h) (Read Only)............................................................................... 33
11.9 Interrupt 1 Mask (09h)..................................................................................................... 33
11.10 Interrupt 1 Mode MSB (0Ah) & Interrupt 1 Mode LSB (0Bh)......................................... 33
11.11 Interrupt 2 Mask (0Ch) .................................................................................................. 34
11.12 Interrupt 2 Mode MSB (0Dh) & Interrupt 2 Mode LSB (0Eh) ........................................ 34
11.13 Receiver Channel Status (0Fh) (Read Only) ................................................................ 34