Datasheet

PCM5141, PCM5142
SLAS759A –AUGUST 2012–REVISED SEPTEMBER 2012 www.ti.com
Detailed Register Descriptions
Page 0 / Register 1
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
1 01 RSV RSV RSV RSTM RSV RSV RSV RSTR
Reset Value 0 0
RSV Reserved
Reserved. Do not access.
RSTM Reset Modules
This bit resets the interpolation filter and the DAC modules. Since the DSP is also reset, the coeffient RAM
content will also be cleared by the DSP. This bit is auto cleared and can be set only in standby mode.
Default value: 0
0: Normal
1: Reset modules
RSTR Reset Registers
This bit resets the mode registers back to their initial values. The RAM content is not cleared, but the execution
source will be back to ROM. This bit is auto cleared and must be set only when the DAC is in standby mode
(resetting registers when the DAC is running is prohibited and not supported).
Default value: 0
0: Normal
1: Reset mode registers
Page 0 / Register 2
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
2 02 RSV RSV RSV RQST RSV RSV RSV RQPD
Reset Value 0 0
RSV Reserved
Reserved. Do not access.
RQST Standby Request
When this bit is set, the DAC is forced into system standby mode, which is also the mode the system enters in
case of clock errors. In this mode, most subsystems are powered down except for the charge pump and digital
power supply.
Default value: 0
0: Normal operation
1: Standby mode
RQPD Powerdown Request
Setting RQPD sends the DAC into powerdown mode, reducing power consumption to a minimum. The charge
pump also powers down. However, it takes longer to restart from this mode. Powerdown mode has higher
precedence than standby mode; setting this bit along with bit 4 for standby mode sends the DAC into
powerdown mode.
Default value: 0
0: Normal operation
1: Powerdown mode
Page 0 / Register 3
Dec Hex b7 b6 b5 b4 b3 b2 b1 b0
3 03 RSV RSV RSV RQML RSV RSV RSV RQMR
Reset Value 0 0
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