adau1961 Analog Devices, Inc., adau1961 Datasheet - Page 68

• Manufacturer Part Number: adau1961
• Description: Stereo, Low Power, 96 Khz, 24-bit Audio Codec With Integrated Pll Adau1961
• Manufacturer: Analog Devices, Inc.

ADAU1961
R40: Control Port Pad Control 0, 16,431 (0x402F)
The optional pull-up/pull-down resistors are nominally 250 kΩ. When enabled, these pull-up/pull-down resistors set the control port
signals to a defined state when the signal source becomes three-state.
Bit 7
Table 65. Control Port Pad Control 0 Register
Bits
[7:6]
[5:4]
[3:2]
[1:0]
R41: Control Port Pad Control 1, 16,432 (0x4030)
With IOVDD set to 3.3 V, the low and high drive strengths of the SDA/COUT pin are approximately 2.0 mA and 4.0 mA, respectively.
The high drive strength mode may be useful for generating a stronger ACK pulse in I
Bit 7
Table 66. Control Port Pad Control 1 Register
Bits
0
Bit Name
CDATP[1:0]
CLCHP[1:0]
SCLP[1:0]
SDAP[1:0]
Bit Name
SDASTR
CDATP[1:0]
Bit 6
Bit 6
Description
CDATA pad pull-up/pull-down configuration.
Setting
00
01
10
11
CLATCH pad pull-up/pull-down configuration.
Setting
00
01
10
11
SCL/CCLK pad pull-up/pull-down configuration.
Setting
00
01
10
11
SDA/COUT pad pull-up/pull-down configuration.
Setting
00
01
10
11
Description
SDA/COUT pin drive strength.
0 = low (default).
1 = high.
Bit 5
Bit 5
CLCHP[1:0]
Bit 4
Bit 4
Reserved
Configuration
Pull-up
Reserved
None (default)
Pull-down
Configuration
Pull-up
Reserved
None (default)
Pull-down
Configuration
Pull-up
Reserved
None (default)
Pull-down
Configuration
Pull-up
Reserved
None (default)
Pull-down
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Bit 3
Bit 3
SCLP[1:0]
2
C mode, if needed.
Bit 2
Bit 2
Bit 1
Bit 1
SDAP[1:0]
Bit 0
Bit 0
SDASTR