User Manual
Table Of Contents
- Features
- Description
- 1. Pin Out - 144-Pin LQFP Package
- 2. Pin Out - 160-Ball FBGA Package
- 3. Pin Descriptions
- 4. operation
- 5. Power-up
- 6. Master Clock
- 7. G.772 Monitoring
- 8. Building Integrated Timing Systems (BITS) Clock Mode
- 9. Transmitter
- 10. Receiver
- 11. Jitter Attenuator
- 12. Operational Summary
- 13. Host Mode
- 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)
- 14.7 LOS Interrupt Enable Register (06h)
- 14.8 DFM Interrupt Enable Register (07h)
- 14.9 LOS Interrupt Status Register (08h)
- 14.10 DFM Interrupt Status Register (09h)
- 14.11 Software Reset Register (0Ah)
- 14.12 Performance Monitor Register (0Bh)
- 14.13 Digital Loopback Reset Register (0Ch)
- 14.14 LOS/AIS Mode Enable Register (0Dh)
- 14.15 Automatic TAOS Register (0Eh)
- 14.16 Global Control Register (0Fh)
- 14.17 Line Length Channel ID Register (10h)
- 14.18 Line Length Data Register (11h)
- 14.19 Output Disable Register (12h)
- 14.20 AIS Status Register (13h)
- 14.21 AIS Interrupt Enable Register (14h)
- 14.22 AIS Interrupt Status Register (15h)
- 14.23 AWG Broadcast Register (16h)
- 14.24 AWG Phase Address Register (17h)
- 14.25 AWG Phase Data Register (18h)
- 14.26 AWG Enable Register (19h)
- 14.27 Reserved Register (1Ah)
- 14.28 Reserved Register (1Bh)
- 14.29 Reserved Register (1Ch)
- 14.30 Reserved Register (1Dh)
- 14.31 Bits Clock Enable Register (1Eh)
- 14.32 Reserved Register (1Fh)
- 14.33 Status Registers
- 15. Arbitrary Waveform Generator
- 16. JTAG Support
- 17. Boundary Scan Register (BSR)
- 18. Applications
- 19. Characteristics and specifications
- 19.1 Absolute Maximum Ratings
- 19.2 Recommended Operating Conditions
- 19.3 Digital Characteristics
- 19.4 Transmitter Analog Characteristics
- 19.5 Receiver Analog Characteristics
- 19.6 Jitter Attenuator Characteristics
- 19.7 Master Clock Switching Characteristics
- 19.8 Transmit Switching Characteristics
- 19.9 Receive Switching Characteristics
- 19.10 Switching Characteristics - Serial Port
- 19.11 Switching Characteristics - Parallel Port (Multiplexed Mode)
- 19.12 Switching Characteristics- Parallel Port (Non-Multiplexed Mode)
- 19.13 Switching Characteristics - JTAG
- 20. Compliant Recommendations and specifications
- 21. 160-Ball FBGA package dimensions
- 22. 144-Pin LQFP Package dimensions
CS61880
DS450PP3 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 0000.
(Refer to Device ID Register (IDR) (See Section 16.3 on page 47).
[3:0] REVI 3-0
Bits [3:0] are the revision bits from the JTAG IDCODE register, CS61880 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 47).
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 HOST
MODE (See Section 13 on page 32) 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.