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Renesas R61509V User Manual

Page 16

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R61509V

Target

Spec

Rev. 0.11 April 25, 2008, page 16 of 181

PROTECT I

Host
processor

Reset protect pin. The R61509V enters a reset protect status by
fixing PROTECT to GND level disabling hardware reset. With
this, erroneous operations caused by noise are prevented.

Low: Hardware reset is disabled (Reset protect status)

High: Hardware reset is enabled. (Normal status)

IOVCC

Table 7 Internal Power Supply Circuit

Signal

I/O

Connect
to

Function

When
not
used

VDD O

Stabilizing
capacitor

Output from internal logic regulator. Connect to a stabilizing
capacitor.

VCI1 O

Stabilizing
capacitor

Reference voltage for step-up circuit 1. Make sure that DDVDH,
VGH and VGL output voltages do no go exceed the ratings.

DDVDH O

Stabilizing
capacitor

Power supply for the source driver liquid crystal drive unit and
VCOM drive. Connect to a stabilizing capacitor.

VGH O

Stabilizing
capacitor

Power supply for the gate driver liquid crystal drive unit.
Connect to a stabilizing capacitor.

VGL O

Stabilizing
capacitor

Power supply for the gate driver liquid crystal drive unit.
Connect to a stabilizing capacitor.

VCL O

Stabilizing
capacitor

Power supply for VCOML drive.

C11P,
C11M,
C12P,
C12M

I/O

Step-up
capacitor

Make sure to connect capacitors for internal step-up circuit 1.

C13P,
C13M,
C21P,
C21M,
C22P,
C22M

I/O

Step-up
capacitor

Make sure to connect capacitors for internal step-up circuit 2.