R5F72115D160FPV datasheet(8/1228 Pages) RENESAS

8 / 1228 page

Rev. 2.00 May. 08, 2008 Page viii of xxiv

REJ09B0344-0200

• Notation in bit figures and tables describing arrangements of bits

Each register description includes a figure that illustrates the arrangement of bits and a table

that describes the meanings of settings in the bits.

Indicates the bit number.

In the case of a 32-bit register, the bits are arranged in order from 31 to 0, and in the case

of a 16-bit register, the bits are arranged in the order from 15 to 0.

The short form of the name of the bit or bit field within the register.

When the individual bits of bit fields have to be clearly indicated, notation allowing this is

included (e.g., ASID[3:0]).

A reserved bit is indicated by

−.

Instead of a bit name, a blank is used for some bits, such as those of timer counters.

(1) Bit

(2) Bit Name

(1)

(2)

Indicates the value of each bit after a power-on reset, i.e., the initial value.

0: Initial value is 0

1: Initial value is 1

−: Initial value is undefined

(3) Initial Value

(3)

Indicates whether each bit is readable or writable, or either writing to or reading from the bit is

prohibited.

The notation is as follows:

R/W:

R/(W):

Bit or field is readable and writable.

However, writing is only performed to clear the flag.

Bit or field is readable and writable.

However, "R" is indicated for all reserved bits. When writing to the bit is required, write

the value stated in the bit table or the initial value.

Bit or field is readable and writable.

However, only the value in the bit table is guaranteed when reading from the bit.

Note: The bit names and sentences in the above figure are examples, and have nothing to do with the contents of this

manual.

(4) R/W

(4)

Describes the function enabled by setting the bit.

(5) Description

(5)

9876543210

Bit:

Bit

14 to 11

0000

R/W

Reserved

This bit is always read as 0. The write value should always be 0.

Address Identifier

Enables or disables the pin function.

Reserved

This bit is always read as 0.

Reserved

This bit is always read as 1.

−

ASID

−

Bit Name

Initial Value R/W

Description

Initial value:

R/W:

0000001000000000

R/W

ASID

ACMP[2:0]

IFE

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