User Manual

32 DS658F4
CS5345
6. REGISTER DESCRIPTION
6.1 Chip ID - Register 01h
Function:
This register is Read-Only. Bits 7 through 4 are the part number ID, which is 1110b (0Eh), and the remaining
bits (3 through 0) indicate the device revision as shown in Table 5 below.
6.2 Power Control - Address 02h
6.2.1 Freeze (Bit 7)
Function:
This function allows modifications to be made to certai n control port bits without the change s taking effect
until the Freeze bit is disabled. To make multiple changes to these bits take effect simultaneously, set the
Freeze bit, make all changes, th en clear the Freeze bit. The bits affected by the Fr eeze function are listed
in Table 6.
6.2.2 Power-Down MIC (Bit 3)
Function:
The microphone preamplifier block will enter a low-power state whenever this bit is set.
6.2.3 Power-Down ADC (Bit 2)
Function:
The ADC pair will remain in a reset state whenever this bit is set.
6.2.4 Power-Down Device (Bit 0)
Function:
The device will enter a low-power state whenever this bit is set. The power-down bit is set by default and
must be cleared before normal operation can occur. The contents of the control registers are retained
when the device is in power-down.
76543210
PART3 PART2 PART1 PART0 REV3 REV2 REV1 REV0
REV[2:0] Revision
001 A
010 B, C0
011 C1
Tabl e 5. Device Revision
76543210
Freeze Reserved Reserved Reserved PDN_MIC PDN_ADC Reserved PDN
Name Register Bit(s)
Mute 04h 2
Gain[5:0] 07h 5:0
Gain[5:0] 08h 5:0
Ta ble 6. Free ze-able Bits