7 register descriptions, 1 device id a and b, 2 device id c and d – Cirrus Logic CS35L32 User Manual
Page 36: 3 device id e, 4 revision id, 5 power control 1, Ster descriptions, Pdn_all, P. 36, Section 7.5
36
DS963F4
CS35L32
7 Register Descriptions
7 Register Descriptions
All registers are read/write except for the chip ID and revision register and the status registers, which are read only. The
user must not change reserved registers from their default state.
7.1 Device ID A and B
Address 0x01
R/O
7
6
5
4
3
2
1
0
DEVIDA[3:0]
DEVIDB[3:0]
Default
0
0
1
1
0
1
0
1
7.2 Device ID C and D
Address 0x02
R/O
7
6
5
4
3
2
1
0
DEVIDC[3:0]
DEVIDD[3:0]
Default
1
0
1
0
0
0
1
1
7.3 Device ID E
Address 0x03
R/O
7
6
5
4
3
2
1
0
DEVIDE[3:0]
—
Default
0
0
1
0
0
0
0
0
Bits
Name
Description
7:4
DEVIDA,
DEVIDC,
DEVIDE
Device ID code for the CS35L32.
DEVIDA 0x3
DEVIDB 0x5
DEVIDC 0xA Represents the “L” in CS35L32
.
DEVIDD 0x3
DEVIDE 0x2
3:0
DEVIDB,
DEVIDD
7.4 Revision ID
Address 0x05
R/O
7
6
5
4
3
2
1
0
AREVID[3:0]
NUMREVID[3:0]
Default
x
x
x
x
x
x
x
x
Bits
Name
Description
7:4
AREVID
Alpha revision. AREVID and NUMREVID form the complete device revision ID (e.g., A0, B2).
0xA A … 0xF F
3:0 NUMREVID Numerical revision. AREVID and NUMREVID form the complete device revision ID (e.g., A0, B2).
0x0 0 … 0xF F
7.5 Power Control 1
Address 0x06
R/W
7
6
5
4
3
2
1
0
PDN_AMP
—
PDN_BST[1:0]
—
PDN_ALL
Default
0
0
0
0
0
1
0
0
Bits Name
Description
7
PDN_
AMP
Power down Class D amplifier. Configures the power state of the Class D amplifier.
0 (Default) Powered up
1 Powered down
6:4
—
Reserved
3:2
Power-down boost converter. Configures the power state of the boost converter.
00 Powered up
01 (Default) Boost Mode bypass. Turns the boost FET OFF, the rectifying FET ON, and the remaining boost circuitry in a low-
power state, with VBST = VP. Powers down internal-control circuitry when operating in VBST = VP Mode.
10–11 Reserved
1
—
Reserved
0
PDN_
ALL
Power down all. Configures the CS35L32 power state. Can be used to quickly power down the device but is not equivalent to
using all of the individual power-down bits.
0 (Default) Powered up, as per individual controls in power control registers 1 and 2.
1 Powered down. All affected blocks are powered down, regardless of individual power-down bit settings.