Datasheet

ADAU1381
Rev. B | Page 73 of 84
Register 16431 (0x402F), Communication Port Pad
Control 0
Bits[7:6], CDATA 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],
CLATCH
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], SCL/CCLK 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], SDA/COUT 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 61. Communication Port Pad Control 0 Register
Bits Description Default
[7:6] CDATA pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down
[5:4]
CLATCH
pad pull-up/pull-down
00
00: pull-up
01: reserved
10: none (default)
11: pull-down
[3:2] SCL/CCLK pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down
[1:0] SDA/COUT pad pull-up/pull-down 11
00: pull-up
01: reserved
10: none (default)
11: pull-down