TAS2557 Datasheet, PDF (72/110 Pages) Texas Instruments – 5.7-W Class-D Mono Audio Amplifier with Class-H Boost and Speaker Sense

TAS2557
SLASEC2 – NOVEMBER 2016
www.ti.com
Bit Field
7
Reserved
6-3 ASI2_WCLK[3:0]
2
Reserved
1
ASI2_WCT
0
Reserved
Table 76. ASI2 WCLK Field Descriptions
Type
RW
RW
Reset
0h
5h
RW
0h
RW
0h
RW
0h
Description
Reserved
ASI2 WCLK input is from
0 = GPIO1
1 = GPIO2
2 = GPIO3
3 = GPIO4
4 = GPIO5
5 = GPIO6 (Preferred pin usage)
6 = GPIO7
7 = GPIO8
8 = GPIO9
9 = GPIO10
10-11 = Reserved
12 = GPI1
13 = GPI2
14 = GPI3
15-31 = Reserved
Reserved
ASI2 WCLK timing as per timing protocol is
0 = normal
1 = inverted
Reserved
12.3.54 ASI2_DIN_DOUT (book=0x00 page=0x01 address=0x20) [reset=38h]
Configures the digital input and output ports.
Figure 99. ASI2_DIN_DOUT Register Address: 0x20
7
6
5
4
3
Reserved
ASI2_DIN[3:0]
RW-0h
RW-7h
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
2
Reserved
RW-0h
1
0
ASI2_DOUT[1:0]
RW-0h
Bit Field
7
Reserved
6-3 ASI2_DIN[3:0]
2
Reserved
1-0 ASI2_DOUT[1:0]
Table 77. ASI2 DIN/DOUT Field Descriptions
Type
RW
RW
Reset
0h
7h
RW
0h
RW
0h
Description
Reserved
ASI2 DIN input is from
0 = GPIO1
1 = GPIO2
2 = GPIO3
3 = GPIO4
4 = GPIO5
5 = GPIO6
6 = GPIO7
7 = GPIO8 (Preferred pin usage)
8 = GPIO9
9 = GPIO10
10-11 = Reserved
12 = GPI1
13 = GPI2
14 = GPI3
15-31 = Reserved
Reserved
ASI2 DOUT output is
0 = DOUT path, output buffer enabled only if i-sense is powered
up
1 = ASI1_DIN, loopback
2 = ASI2_DIN, loopback
3 = DOUT path, output buffer enable controlled only based on
ASI1 configuration
72
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