MSM7731-02 OKI [OKI electronic componets], MSM7731-02 Datasheet - Page 40

• Manufacturer Part Number: MSM7731-02
• Description: Dual Echo Canceler & Noise Canceler with Dual Codec for Hands-Free
• Manufacturer: OKI [OKI electronic componets]

RELATIONSHIP BETWEEN PINS AND CONTROL REGISTERS
In this device, the same function is controlled by either a pin or a control register.
For example, when a function is controlled by a pin, setting of the corresponding control register is important.
Table 3 shows the relationship between settings of pins when functions are controlled by control registers and
setting of control registers when functions are controlled by pins. The setting value of a control register when a
function is controlled by a pin is equal to its initial value when the device is reset by the PDN/RST pin or the
PDN/RST bit (CR0-B7).
1 Semiconductor
LTHR/ATHR
GLPADTHR
LATT/AATT
NCPAD1, 2
NCSEL1, 2
LHD/AHD
LGC/AGC
PDN/RST
MCUSEL
RPAD4-1
PCMSEL
TPAD4-1
SLPTHR
Function
LINEEN
ECSEL
RST
Table 3 Relationship between pins and control registers
Setting of pin when function is
controlled by control register
Logic “0”
Logic “1”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “1”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Logic “0”
Setting of control register when
function is controlled by pin
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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