M38039G8HKP datasheet(91/92 Pages) RENESAS

91 / 92 page

Rev.1.10

Nov 14, 2005

Page 91 of 91

REJ03B0166-0110

3803 Group (Spec.H QzROM version)

PRELIMINARY

Notice: This is not a final specification.

Some parametric limits are subject to change.

QzROM Version

Connect the CNVSS/VPP pin the shortest possible to the GND

pattern which is supplied to the VSS pin of the microcomputer.

In addition connecting an approximately 5 k

Ω resistor in series to

the GND could improve noise immunity. In this case as well as

the above mention, connect the pin the shortest possible to the

GND pattern which is supplied to the V SS pin o f the

microcomputer.

•Reason

The CNVSS/VPP pin is the power source input pin for the built-in

QzROM. When programming in the QzROM, the impedance of

the VPP pin is low to allow the electric current for writing to flow

into the built-in QzROM. Because of this, noise can enter easily.

If noise enters the VPP pin, abnormal instruction codes or data

are read from the QzROM, which may cause a program runaway.

Fig 8.

Wiring for the CNVSS/VPP

Notes On QzROM Writing Orders

When ordering the QzROM product shipped after writing,

submit the mask file (extension: .mask) which is made by the

mask file converter MM.

Be sure to set the ROM option (“MASK option” written in the

mask file converter) setup when making the mask file by using

the mask file converter MM.

Notes On ROM Code Protect

(QzROM product shipped after writing)

As for the QzROM product shipped after writing, the ROM code

protect is specified according to the mask option setup data in the

mask file which is submitted at ordering.

Renesas Technology corp. uses the mask option setup data at the

ROM code protect address (address FFDB16) when writing to the

QzROM. Consequently, the actual written value might differ

from the ordered value as the contents of the ROM code protect

address.

The ROM option setup data in the mask file is “0016” for protect

enabled, “FE16” (protect enabled to the protect area 1 only) or

“FF16” for protect disabled. Therefore, the contents of the ROM

code protect address of the QzROM product shipped after

writing are “0016”, “FE16” or “FF16”.

Note that the mask file which has nothing at the ROM option

data or has the data other than “0016”, “FE16” and “FF16” can not

be accepted.

DATA REQUIRED FOR QzROM WRITING ORDERS

The following are necessary when ordering a QzROM product

shipped after writing:

1. QzROM Writing Confirmation Form*

2. Mark Specification Form*

3. ROM data...........Mask file

* For the QzROM writing confirmation form and the mark

specification form, refer to the “Renesas Technology Corp.”

Homepage (http://www.renesas.com/homepage.jsp).

Note that we cannot deal with special font marking (customer's

trademark etc.) in QzROM microcomputer.

The shortest

CNVSS/VPP

VSS

Approx. 5k

Ω

The shortest

(Note)

Note. Shows the microcomputer’s pin.

M38039G8HKP Datasheet(PDF) 91 Page - Renesas Technology Corp

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