To all our customers
Regarding the change of names mentioned in the document, such as Mitsubishi
Electric and Mitsubishi XX, to Renesas Technology Corp.
The semiconductor operations of Hitachi and Mitsubishi Electric were transferred to Renesas
Technology Corporation on April 1st 2003. These operations include microcomputer, logic, analog
and discrete devices, and memory chips other than DRAMs (flash memory, SRAMs etc.)
Accordingly, although Mitsubishi Electric, Mitsubishi Electric Corporation, Mitsubishi
Semiconductors, and other Mitsubishi brand names are mentioned in the document, these names
have in fact all been changed to Renesas Technology Corp. Thank you for your understanding.
Except for our corporate trademark, logo and corporate statement, no changes whatsoever have been
made to the contents of the document, and these changes do not constitute any alteration to the
contents of the document itself.
Note : Mitsubishi Electric will continue the business operations of high frequency & optical devices
and power devices.
Renesas Technology Corp.
Customer Support Dept.
April 1, 2003
Keep safety first in your circuit designs!
•
Mitsubishi Electric Corporation puts the maximum effort into making semiconductor prod-
ucts better and more reliable, but there is always the possibility that trouble may occur with
them. Trouble with semiconductors may lead to personal injury, fire or property damage.
Remember to give due consideration to safety when making your circuit designs, with ap-
propriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of non-
flammable material or (iii) prevention against any malfunction or mishap.
Notes regarding these materials
•
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•
•
•
•
•
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These materials are intended as a reference to assist our customers in the selection of the
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How to read internal I/O register tables
➀
Bit Numbers: Each register is connected with an internal bus of 16-bit
wide, so the bit numbers of the registers located at even
addresses are D0-D7, and those at odd addresses are
D8-D15.
➁
State of Register at Reset: Represents the initial state of each register
immediately after reset with hexadecimal numbers
(undefined bits after reset are indicated each in column
➂.)
➂
At read:
... read enabled
? ... read disabled (read value invalid)
0 ... Read always as 0
1 ... Read always as 1
: Write enabled
∆
: Write enable conditionally
(include some conditions at write)
- : Write disabled (Written value invalid)
{
At write:
<Example of representation>
Not implemented
in the shaded portion.
1
D0
1
Abit
2
Bbit
3
Cbit
Registers represented with thick rectangles
are accessible only with halfwords or words
(not accessible with bytes).
4
2
D
0
1
Bit name
Not assigned.
Abit
(...................)
2
Bbit
(...................)
3
Cbit
(...................)
0: -----
1: -----
0: -----
1: -----
0: -----
1: -----
Function
<at reset: H'04>
R
0
W
3
4
PCB Design
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