UCB1510DB Просмотр технического описания (PDF) - Philips Electronics
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UCB1510DB Datasheet PDF : 32 Pages
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Philips Semiconductors
UCB1510
AC97 digital modem codec
11.2.11 Vendor Specific Codec Control
Table 21: codec_control Register
Register address: 0x5A; default: 0x0400
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Symbol
AC
ME
VE
VB
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Symbol
0
0
0
SE
0
0
0
VF
Table 22: codec_control bits
Bit
Symbol Function/Value
D12 AC
adc_clip, in read mode, this bit indicates clipping in the line1 ADC.
This indicator is sticky and should be cleared by writing it with a 0.
D10 ME
reserved, should be 1
D9
VE
vref_external, overwrites VB
D8
VB
vref_bypass
D[7:5], 0
D[3:1]
Bits marked ‘0’ are reserved for future use and should be programmed
with 0.
D4
SE
sidetone_enable
D0
VF
voice_filter:1->enable voice band digital filter.
11.2.12 Vendor Specific Mode Control
Table 23: mode_control Register
Register address: 0x5C; default: 0x0000
Bit
D15 D14 D13 D12 D11 D10
D9
D8
Symbol
reserved: 0x0
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Symbol
0
0
0
0 BITSTREAM
[1] Bits marked 0 are reserved for future use and should be programmed with 0.
Table 24: mode_control bits
Bit
Symbol
Function/Value
D0
BITSTREAM line1 ADC bitstream data is sent directly to IO4. The associated
clock is sent to IO6.
11.2.13 Vendor specific Test Control
Table 25: Test_control Register
Register address: 0x5E; default: N/A
Bit
D15
D14
D13
D12
D11
D10
D9
D8
Symbol
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Symbol
This register cannot be reset. It has no effect until the IC is put in vendor test mode
(see Table 29 “Mode selection with AC pins”).
9397 750 06856
Preliminary specification
Rev. 01 — 4 February 2000
© Philips Electronics N.V. 2000. All rights reserved.
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