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STLC5046 数据表(PDF) 11 Page - STMicroelectronics |
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STLC5046 数据表(HTML) 11 Page - STMicroelectronics |
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11 / 27 page ![]() REGISTERS DESCRIPTION Configuration Register (CONF) Addr=00h; Reset Value=3Fh Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 RES LIN AMU STA PD3 PD2 PD1 PD0 RES=0Normal Operation RES=1 Device Reset: I/0n and CSn are all inputs, DX is H.I. (equivalent to Hw. reset). LIN=0 A or µ law PCM encoding LIN=1 Linear encoding (16 bits), two’s comple- ment. AMU=0 µ law selection AMU=1 A law selection (even bits inverted) STA=0 CS0 to CS3 scan the four SLICs con- nected to the I/O control port, each CS has a 31.25 µs repetition time. STA=1; I/O are static, CS0 to CS3 are config- ured as generic static I/O PD3..0=0 Codec 3..0 is active PD3..0=1 Codec 3..0 is in power Down. When one codec is in Power Down the corresponding VFRO output is forced to AGND. and the corre- sponding transmit time slot on DX is set in H.I. Pin strap value: RES 0 AMU 0 PD3 PD2 PD1 PD0 I/O Direction Register (DIR) Addr=01h; Reset Value=00h Addr=02h; Reset Value=X0h Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 IO7 IO6 IO5 IO4 IO3 IO2 IO1 IO0 IO11 IO10 IO9 IO8 IO11..0 = 0; I/O pin 11..0 is an input, data on the I/O input is written in DATAn register bit 11..0. IO11..0 = 1; I/O pin 11..0 is an output, data con- tained in DATAn register bit11..0 is transferred to the I/O output. Pin strap value: 000 00 00 0 000 00 00 0 I/O Data Register channel #0 (DATA0) Addr=03h; Reset Value=00h Addr=04h; Reset Value=X0h If bit 4 of CONF register (STA)=0 Dynamic I/O mode: Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 D07 D06 D05 D04 D03 D02 D01 D00 D011 D010 D09 D08 When CS0 is active D011..0 are transferred to the corresponding I/O pins configured as outputs (see DIR register). For the I/O pins configured as inputs the corresponding D011..0 will be written by the values applied to those pins while CS0 is low. If bit 4 of CONF register (STA)=1 Static I/O mode: Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 DS7 DS6 DS5 DS4 DS3 DS2 DS1 DS0 DS11 DS10 DS9 DS8 D11..0 are transferred to the corresponding I/O pins configured as outputs (see DIR register). For the I/O pins configured as inputs the correspond- ing D11..0 will be written by the values applied to those pins. Pin strap value: 000 0 0 000 0 000 I/O Data Register channel #1 (DATA1) Addr=05h; Reset Value=00h Addr=06h; Reset Value=X0h If bit 4 of CONF register (STA)=0 Dynamic I/O mode: Bit7 Bit6 Bit5 Bit4 Bit3 Bit2 Bit1 Bit0 D17 D16 D15 D14 D13 D12 D11 D10 D111 D110 D19 D18 When CS1 is active D11..0 are transferred to the corresponding I/O pins configured as outputs (see DIR register). For the I/O pins configured as inputs the corresponding D11..0 will be written by the values applied to those pins while CS1 is low. If bit 4 of CONF register (STA)=1 STLC5046 11/27 |
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