SN11113 spec

13

SN11113 supports SCMS (serial copy management system); if incoming digital audio data has

copyright protection enabled, it will not record this audio data and send silent audio data to PC.

Because the digital audio data has its original data format (16~24bits) and sample rate, sample

rate in recording software on PC should be set as the same rate when user wants to record this

digital audio data. For analog audio data recording, it supports two sampling rate : 44.1KHz and

48KHz.

7.6

EEPROM data storage pattern

EEPROM

address

High byte (MSB to LSB) Low byte (MSB to LSB)

Notes

0

idVendor high byte

idVendor low byte

1

idProduct high byte

idProduct low byte

2

Control word high byte

Control word low byte

Refer to the next table

3

Reg address

X

Programming AC’97 reg address

4

Reg dataH

Reg dataL

Programming reg data

5

Reg address

X

Programming AC’97 reg address

6

Reg dataH

Reg dataL

Programming reg data

.

Reg address

X

Programming AC’97 reg address

.

Reg dataH

Reg dataL

Programming reg data

* 16 bit per word at each address

control word (address 02)

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

R

R

cdcreg outsw regcnt3 regcnt2 Regcnt1 regcnt0 Chk7 Chk6 Chk5 Chk4 Chk3 Chk2 Chk1 Chk0

bit 15 – bit 14

R – reserved

bit 13

cdcreg – 0 : programming with EEPROM values

1: programming with SN11113 built-in values

bit 12

outsw – 0 : volume control

Aux. Line Out (ox04)

1 : Volume control Stereo Line Out (0x02)

bit11 – bit 8

regcnt [3:0] – toatl number of programming AC’97 Codec registers

bit 7 – bit 0

Chk [7:0] – EEPROM magic code (Hex AB), used to check EEPROM existence

programming example:

bit 13 = 1,

ignore setting in bit 11 to bit8 , using SN11113 built-in programming values

bit 13 = 0,

regcnt [3:0]

≠0 – using programming values stored in EEPROM

bit 13 = 0,

regcnt [3:0]

= 0

– inhibition