Texas Instruments PCM5142 Evaluation Module PCM5142EVM-U PCM5142EVM-U Fiche De Données
Codes de produits
PCM5142EVM-U
SLAS759A – AUGUST 2012 – REVISED SEPTEMBER 2012
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.
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).
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.
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.
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
80
Copyright © 2012, Texas Instruments Incorporated
Product Folder Links: