How To Use This Manual - Renesas M16C/6NK Hardware Manual

1. Introduction
This hardware manual provides detailed information on the M16C/6N Group (M16C/6NK, M16C/6NM) of
microcomputers.
Users are expected to have basic knowledge of electric circuits, logical circuits and microcomputers.
2. Register Diagram
The symbols, and descriptions, used for bit function in each register are shown below.
XXX Register
b7 b6 b5 b4 b3
0 0
*1
Blank:Set to "0" or "1" according to the application
0 : Set to "0"
1 : Set to "1"
X : Nothing is assigned
*2
RW : Read and write
RO : Read only
WO : Write only
– : Nothing is assigned
*3
• Reserved bit
Reserved bit. Set to specified value.
*4
• Nothing is assigned
Nothing is assigned to the bit concerned. As the bit may be use for future functions, set to "0" when
writing to this bit.
• Do not set to this value
The operation is not guaranteed when a value is set.
• Function varies depending on mode of operation
Bit function varies depending on peripheral function mode.
Refer to respective register for each mode.
*5
Follow the text in each manual for binary and hexadecimal notations.

How to Use This Manual

*1
b2 b1 b0
Symbol
XXX
Bit
Bit Name
Symbol
0
XXX
XXX Bit
1
XXX
Nothing is assigned. When write, set to "0",
-
(b2)
When read, its content is indeterminate.
-
Reserved Bit
(b4-b3)
XXX5
XXX Bit
6
XXX
7
XXX
XXX Bit
Address After Reset
XXX
Function
b1 b0
0 0: XXX
0 1: XXX
1 0: Do not set a value
1 1: XXX
Set to "0"
Function varies depending on
mode of operation
0: XXX
1: XXX
*5
00h
RW
*2
RW
RW
*3
WO
*4
RW
RW
RO