EVAL-ADAU1401EB AD [Analog Devices], EVAL-ADAU1401EB Datasheet - Page 41

• Manufacturer Part Number: EVAL-ADAU1401EB
• Description: SigmaDSP 28-/56-Bit Audio Processor with Two ADCs and Four DACs
• Manufacturer: AD [Analog Devices]

2080 TO 2081 (0x0820 TO 0x0821)—MULTIPURPOSE PIN CONFIGURATION REGISTERS
Each multipurpose pin can be set to different functions from
these registers (2080 to 2081). The two 3-byte registers are
broken up into 12 4-bit (nibble) sections that each control a
different MP pin. Table 55 lists the function of each nibble
setting within the MP pin configuration registers. The MSB of
Table 53. Register 2080
D15
MP33
Table 54. Register 2081
D15
MP93
Table 55.
Bit Name
MPx [3:0]
D14
MP92
D14
MP32
D13
MP91
D13
MP31
Set the function of each multipurpose pin
Description
MPx [3:0]
1111
1110
1101
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
D12
MP90
D12
MP30
D11
MP83
D11
MP23
D10
MP82
D10
MP22
Auxiliary ADC input (see Table 64)
Reserved
Reserved
Serial data port—inverted (see Table 66)
Open-collector output—inverted
GPIO output—inverted
GPIO input, no debounce—inverted
GPIO input, debounced—inverted
N/A
Reserved
Reserved
Serial data port (see Table 66)
Open-collector output
GPIO output
GPIO input, no debounce
GPIO input, debounced
Setting
D9
MP81
D9
MP21
D8
MP80
D8
MP20
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D23
D7
MP113
MP73
D23
D7
MP53
MP13
D6
D22
MP112
MP72
D22
D6
MP52
MP12
each pin’s 4-bit configuration inverts the input to or output
from the pin. The internal pull-up resistor (approximately
10 kΩ) of each MP pin is enabled when it is set as a digital input
(either a GPIO input or a serial data port input).
D21
D5
MP111
MP71
D21
D5
MP51
MP11
D20
D4
MP110
MP70
D20
D4
MP50
MP10
D19
D3
MP103
MP63
D19
D3
MP43
MP03
D2
D18
MP102
MP62
D18
D2
MP42
MP02
D17
D1
MP101
MP61
D1
D17
MP41
MP01
ADAU1401
D16
D0
MP40
MP00
D16
D0
MP100
MP60
Default
0x00
0x0000
Default
0x00
0x0000