Register descriptions, 1 device i.d. and revision (address 01h), 1 device identification (device[4:0]) - read only – Cirrus Logic CS2100-CP User Manual
Page 25: 2 device revision (revision[2:0]) - read only, 2 device control (address 02h), 1 unlock indicator (unlock) - read only, 2 auxiliary output disable (auxoutdis), P 25, Cs2100-cp
CS2100-CP
DS840F2
25
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
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 CS2100.
8.1.2
Device Revision (Revision[2:0]) - Read Only
CS2100 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.
7
6
5
4
3
2
1
0
Device4
Device3
Device2
Device1
Device0
Revision2
Revision1
Revision0
Device[4:0]
Device
00000
CS2100.
REVID[2:0]
Revision Level
100
B2 and B3
110
C1
7
6
5
4
3
2
1
0
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: