STA027 ST Microelectronics, STA027 Datasheet - Page 25

• Manufacturer Part Number: STA027
• Description: SBC Codec
• Manufacturer: ST Microelectronics

STA027
Note:
Note:
5.5.2
Table 12.
that embedded default configuration for GPSO can be retrieved by user thanks to following
setting :
that embedded default configuration for PCM block is described at previous chapter.
GPSO_CONF :
Address : 0x6A (106)
Type : RW - DEC
Software Reset : 0
Description :
If OUTPUT_CONF == 1, this register configure the GPSO interface
Table 13.
CF7
–
b7
Bit fields
CF[7:2]
Bit fields
CF0
CF1
OC1
OC2
GPSO_CONF = b00000011;
.
CF6
b6
Polarity of GPSO_CK :
0 : data provided on rising edge & stable on falling edge
1 : data provided on falling edge & stable on rising edge
Polarity of GPSO_REQ :
0 : data are valid when GPSO_REQ is high
1 : data are valid when GPSO_REQ is low
Reserved : to be set to 0.
Use of block PCM to generate clocks (PCMCK, LRCK & BCK):
0 : no use.
1 : use it.
Configuration of PCM block:
0 : take embedded default configuration.
1 : configure PCM block from PCM_DIV & PCM_CONF registers.
CF5
b5
CD00066274
CF4
b4
CF3
b3
Comment
Comment
CF2
b2
5 Register description
CF1
b1
CF0
b0
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