Owner's manual

CS2000-CP
28 DS761F2
8. REGISTER DESCRIPTIONS
In I²C Mode all registers are read/write unless otherwise stated. In SPI mode all registers are write only. All “Re-
served” registers must maintain their default state to ensure proper functional operation. The default state of each
bit after a power-up sequence or reset is indicated by the shaded row in the bit decode table and in the “Register
Quick Reference” on page 27.
Control port mode is entered when the device recognizes a valid chip address input on its I²C/SPI serial control pins
and the EnDevCfg1 and EnDevCfg2 bits are set to 1.
8.1 Device I.D. and Revision (Address 01h)
8.1.1 Device Identification (Device[4:0]) - Read Only
I.D. code for the CS2000.
8.1.2 Device Revision (Revision[2:0]) - Read Only
CS2000 revision level.
8.2 Device Control (Address 02h)
8.2.1 Unlock Indicator (Unlock) - Read Only
Indicates the lock state of the PLL.
8.2.2 Auxiliary Output Disable (AuxOutDis)
This bit controls the output driver for the AUX_OUT pin.
76543210
Device4 Device3 Device2 Device1 Device0 Revision2 Revision1 Revision0
Device[4:0] Device
00000 CS2000.
REVID[2:0] Revision Level
100 B2 and B3
110 C1
76543210
Unlock Reserved Reserved Reserved Reserved Reserved AuxOutDis ClkOutDis
Unlock PLL Lock State
0 PLL is Locked.
1 PLL is Unlocked.
AuxOutDis Output Driver State
0 AUX_OUT output driver enabled.
1 AUX_OUT output driver set to high-impedance.
Application: “Auxiliary Output” on page 23