Datasheet

ADAU1381
Rev. B | Page 71 of 84
Register 16429 (0x402D), Serial Port Pad Control 0
Bits[7:6], ADC_SDATA Pad Pull-Up/Pull-Down
These bits enable or disable a weak pull-up or pull-down device
on the pad. The effective resistance of the pull-up or pull-down
is nominally 240 kΩ.
Bits[5:4], DAC_SDATA Pad Pull-Up/Pull-Down
These bits enable or disable a weak pull-up or pull-down device
on the pad. The effective resistance of the pull-up or pull-down
is nominally 240 kΩ.
Bits[3:2], LRCLK Pad Pull-Up/Pull-Down
These bits enable or disable a weak pull-up or pull-down device
on the pad. The effective resistance of the pull-up or pull-down
is nominally 240 kΩ.
Bits[1:0], BCLK Pad Pull-Up/Pull-Down
These bits enable or disable a weak pull-up or pull-down device
on the pad. The effective resistance of the pull-up or pull-down
is nominally 240 kΩ.
Table 59. Serial Port Pad Control 0 Register
Bits Description Default
[7:6] ADC_SDATA pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down
[5:4] DAC_SDATA pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down
[3:2] LRCLK pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down
[1:0] BCLK pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down