
TSC2117
Low-Power Audio Codec With Embedded miniDSP, Stereo Class-D
Speaker Amplifier, and Smart Four-Wire Touch-Screen Controller
www.ti.com
SLAS550A – APRIL 2009 – REVISED JUNE 2009
Page 0/Register 55: MISO (OUT Pin) Control
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D5
R/W
000
Reserved
D4–D1
R/W
0001
0000: MISO disabled (output buffer powered down)
0001: MISO = MISO output for SPI interface or disabled in case of I2C interface
0010: General-purpose output
0011: MISO = CLKOUT output
0100: MISO = INT1 output
0101: MISO = INT2 output
0110: MISO = ADC_WCLK output for codec interface
0111: MISO = ADC_MOD_CLK output for the digital microphone
1000: MISO = secondary SDOUT for codec interface
1001: MISO = secondary BCLK output for codec interface
1010: MISO = secondary WCLK output for codec interface
1011–1111: Reserved
D0
R/W
0
0: MISO general-purpose output value = 0
1: MISO general-purpose output value = 1
Page 0/Register 56: SCLK (IN Pin) Control
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7–D3
R/W
0000 0
Reserved
D2–D1
R/W
01
00: SCLK disabled (input buffer powered down)
01: SCLK enabled and used for the SPI interface
10: SCLK enabled and is used a general-purpose input (GPI)
11: SCLK enabled and can be used as secondary SDIN, secondary BCLK input, secondary WCLK
input, ADC_WCLK Input, or Dig_Mic_In
D0
R
X
SCLK input buffer value
Page 0/Register 57: GPI1 and GPI2 Pin Control
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R/W
0
Reserved. Write only zero to this bit.
D6–D5
R/W
00
00: GPI1 disabled (input buffer powered down)
01: GPI1 enabled (this pin can be used as secondary SDIN, secondary BCLK input, secondary WCLK
input, ADC_WCLK input)
10: GPI1 is enabled and used as a general-purpose input (GPI).
11: Reserved
D4
R
X
GPI1 pin value
D3
R/W
0
Reserved. Write only zero to this bit.
D2–D1
R/W
00
00: GPI2 disabled (input buffer powered down)
01: GPI2 enabled (this pin can be used as secondary BCLK input, secondary WCLK input, ADC_WCLK
input)
10: GPI2 is enabled and used as a general-purpose input (GPI).
11: GPI2 is enabled and used as an HP_SP input.
D0
R
X
GPI2 pin value
Page 0/Register 58: GPI3 Pin Control
READ/
RESET
BIT
DESCRIPTION
WRITE
VALUE
D7
R/W
0
Reserved. Write only zero to this bit.
D6–D5
R/W
00
00: GPI3 disabled (input buffer powered down)
01: GPI3 enabled (this pin can be used as secondary BCLK input, secondary WCLK input, ADC_WCLK
input)
10: GPI3 is enabled and used as a general purpose input (GPI).
11: Reserved
D4
R
X
GPI3 pin value.
D3–D0
R/W
0000
Reserved. Write only zeros to these bits.
REGISTER MAP
119