ICE1232 IC Ensemble, ICE1232 Datasheet - Page 22

• Manufacturer Part Number: ICE1232
• Description: ac 97 2.1 VSR Audio Codec With 3D
• Manufacturer: IC Ensemble

IC Ensemble, Inc .
3D Control Register (Index 22h)
DP[3:0]
Power Down and Status Register (Index 26h)
EAPD
PR[5:0]
Extended Audio ID Register (Index 28h)
The Extended Audio ID is a read only register.
ID[1:0]
22
EAPD PR6
D15
D15
D15
ID1
–
D14
D14
D14
ID0
–
D13
D13
PR5
D13
–
–
(See Table below)
D12
3D Depth Control
These four bits control the linear depth control of the 3D stereo enhancement built into the
codec. The gain is programmable from 0% to 100% in 6.67% increments, providing a total
of 16 programmable levels. The default value corresponds to no stereo enhancement.
D12
PR4
Enable Amplifier Power Down
“1” :
“0” :
The signal polarity at pin 47, EAPD is identical to bit description.
Power Down Mode Bits
These read/write bits are used to control the power down states of the ICE1232. Each
power down function bit is enabled by setting the respective bit high. The power down
modes controlled by each bit is described in the table below:
Status (READ Only) bits
These bits are used to monitor the readiness of some sections of the ICE1232. Reading a
“1” from any of these bits would be an indication of a “ready” state.
D12
–
–
REF
DAC
ADC
PR0
PR1
PR2
PR3
PR4
PR5
PR6
ANL
Bit
Bit
D11
D11
PR3
D11
–
–
Powerdown External Power Amplifier
External Power Amplifier active
D10
D10
PR2
D10
–
–
Function
ADC and Mux Powerdown
DAC Powerdown
Mixer Powerdown (V
Mixer Powerdown (V
AC Link Powerdown (BIT_CLK off)
Internal Clock Disabled
Alternate Line Out Powerdown
Status Bit
V
Mixer, Mux and Volume Controls ready
DAC ready to accept data
ADC ready to transmit data
REF
AMAP
PR1
at nominal level
D9
D9
D9
–
PR0
D8
D8
D8
–
–
REF
REF
D7
D7
D7
–
–
–
on)
off)
D6
D6
D6
–
–
–
D5
D5
D5
–
–
–
D4
D4
D4
–
–
–
DP3
REF
D3
D3
D3
–
DP2
ANL
D2
D2
D2
–
Preliminary
DAC
DP1
D1
D1
D1
–
Rev. 1.5, 1/10/00
ADC
VRA
DP0
D0
D0
D0
Default
Default
Default
0000h
0000h
0201h