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CS4237B Datasheet(PDF) 46 Page - Cirrus Logic |
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CS4237B Datasheet(HTML) 46 Page - Cirrus Logic |
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46 / 114 page  res Reserved. Must write 0. Could read as 0 or 1. The PI, CI, and TI bits are reset by writing a "0" to the particular interrupt bit or by writing any value to the Status register (R2). Compatibility ID (I25) Default = 00000011 D7 D6 D5 D4 D3 D2 D1 D0 V2 V1 V0 CID4 CID3 CID2 CID1 CID0 CID4-CID0 Chip Identification. Distinguishes between this chip and previous codec chips that support this register set. This register is fixed to indicate code compatibility with the CS4236. X25 or C1 should be used to further differentiate between parts that are compatible with the CS4236. All Chips: 00011 - CS4236, CS4237B 00010 - CS4232/CS4232A 00000 - CS4231/CS4231A V2-V0 Version number. As enhancements are made to the part, the version number is changed so software can distinguish between the different ver- sions. 000 - Compatible with the CS4236 These bits are fixed for compatibility with the CS4236. Register X25 or C1 may be used to differentiate be- tween the CS4236 and newer chips. Mono Input and Output Control (I26) Default = 101x0000 D7 D6 D5 D4 D3 D2 D1 D0 MIM MOM MBY res MIA3 MIA2 MIA1 MIA0 MIA3-MIA0 Mono Input Attenuation. When MIM is 0, these bits set the level of MIN summed into the mixer. MIA0 is the least significant bit and represents 3 dB attenuation, with 0000 = 0 dB. See Table 7. res Reserved. Must write 0. Could read as 0 or 1. MBY Mono Bypass. MBY connects MIN directly to MOUT with an attenuation of 9 dB. When MBY = 1, MIM should be set to 1. 0 - MIN not connected directly to MOUT. 1 - MIN connected directly to MOUT. MOM Mono Output Mute. In MODE 3, MOM will mute the left Line Out to the mono mix output, MOUT. The right Line Out mute, MOMR, is in X5. In MODE 2, MOM mutes left and right Line Out to MOUT. This mute is inde- pendent of the line output mute. 0 - no mute 1 - mute MIM Mono Input Mute. In MODE 3, MIM mutes the MIN analog input to the left output mixer channel. MIMR in X4 mutes MIN analog input to the right output mixer channel. In MODE 2, MIM mutes both left and DS213PP4 CS4237B 46 |
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Similar Description - CS4237B |
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