FEDL7055-02

OKI Semiconductor

ML7055

23/30

- Application interface mode

PCM Codec I/F (initial setting)/APB I/F

XTAL Input Frequency of BCM2002X

• If the system clock is supplied from BCM2002X, the XTAL input frequency of BCM2002X must be 13

MHz. 12, 19.2, 19.68, or 19.8 MHz should not be applied.

XTAL Input Frequency of CX72303

• If the system clock is supplied from CX72303, the XTAL input frequency of CX72303 must be 13 MHz.

10 MHz should not be applied.

Required processes when interface pins are unused

• The following tables show the processes that should be performed when interface pins are not used.

• The pins that are not included in the following table should be left open.

RF I/F

Pin Name

Process When Pin Not Used

Comments

RXD

GND

RSSI

Open or GND

PLLLOCK

Open or GND

UART I/F

Pin Name

Process When Pin Not Used

Comments

SIN

CTS

GND

PCM I/F

Pin Name

Process When Pin Not Used

Comments

PCMIN

PCMSYNC

Open or GND

PCMCLK

Open or GND

Processes of Other Pins

TEST I/F etc.

Pin Name

Process When Pin Not Used

Comments

DETACH