UPD30121 datasheet(20/76 Pages) NEC

20 / 76 page

Data Sheet U14691EJ1V0DS00

µµµµPD30121

(4/4)

Pin Name

After Reset by

the RTC Reset

After Reset by the

Deadman’s Switch

or RSTSW# Signal

In the Suspend

Mode

In the Hibernate

Mode or Shut Down

by the HAL Timer

During a Bus

Hold

IRING

−−

−

ILCSENSE

−−

−

OFFHOOK

Note 1

Hi-Z

Note 2

Hi-Z

Note 2

MUTE

Note 1

Hi-Z

Note 2

Hi-Z

Note 2

AFERST#

Note 1

Note 2

SDI

−−

−

−−

−

SDO

Note 2

HSPSCLK

−−

−

TELCON

Note 1

Hi-Z

Note 2

Hi-Z

Note 2

HC0

Note 1

Note 2

HSPMCLK

Note 1

Note 2

OPD#

Note 2

LEDOUT#

Note 3

DBUS32/

GPIO48

Note 4

Hi-Z/

Hi-Z

Hi-Z/

Note 2

Note 2/

Note 2

Hi-Z/

Note 2

Note 2/

Note 2

MIPS16EN

Hi-Z

SMODE1/

GPIO49

Note 4

Hi-Z/

Hi-Z

Note 5

Hi-Z/

Note 2

Note 2/

Note 2

Hi-Z/

Note 2

Note 2/

Note 2

SMODE2

−−

−

Notes 1. When initializing, always set BSC bit to 1 in the HSPINT register (0x0C00 0020).

2. The state of the previous Full-speed Mode is maintained.

3. Normal operation proceeds.

4. After the RTC reset is released, this functions as an output port.

5. Specify the input data level using a high-resistance pull up or pull down resistor.

Remark 0: low level, 1: high level, Hi-Z: high impedance

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