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CS61884 数据表(PDF) 35 Page - Cirrus Logic |
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CS61884 数据表(HTML) 35 Page - Cirrus Logic |
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35 / 72 page ![]() CS61884 DS485PP4 35 14. REGISTER DESCRIPTIONS 14.1 Revision/IDcode Register (00h) 14.2 Analog Loopback Register (01h) 14.3 Remote Loopback Register (02h) 14.4 TAOS Enable Register (03h) 14.5 LOS Status Register (04h) 14.6 DFM Status Register (05h) BIT NAME Description [7:4] REVI 7-4 Bits [7:4] are taken from the least-significant nibble of the Device IDCode, which are 0100. (Refer to Device ID Register (IDR) (See Section 16.3 on page 48). [3:0] REVI 3-0 Bits [3:0] are the revision bits from the JTAG IDCODE register, CS61884 Revision A = 0000. These bits are subject to change with the revision of the device (Refer to Device ID Register (IDR) (See Section 16.3 on page 48). BIT NAME Description [7:0] ALBK 7-0 Enables analog loopbacks. A “1” in bit n enables the loopback for channel n. Refer to Analog Loopback (See Section 12.2 on page 29) for a complete explanation. Register bits default to 00h after power-up or reset. BIT NAME Description [7:0] RLBK 7-0 Enables remote loopbacks. A “1” in bit n enables the loopback for channel n. Refer to Remote Loopback (See Section 12.4 on page 30) for a complete explanation. Register bits default to 00h after power-up or reset. BIT NAME Description [7:0] TAOE 7-0 A “1” in bit n of this register turns on the TAOS generator in channel n. Register bits default to 00h after power-up or reset. BIT NAME Description [7:0] LOSS 7-0 Register bit n is read as “1” when LOS is detected on channel n. Register bits default to 00h after power-up or reset. BIT NAME Description [7:0] DFMS 7-0 Driver Failure Monitor. The DFM will set bit n to “1” when it detects a short circuit in channel n. Register bits default to 00h after power-up or reset. |
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