SAF-C164SM Infineon Technologies, SAF-C164SM Datasheet - Page 440

• Manufacturer Part Number: SAF-C164SM
• Description: 16-Bit CMOS Microcontroller
• Manufacturer: Infineon Technologies

23
This chapter summarizes all registers implemented in the C164CM and explains the
description format used in the chapters which describe the functions and layout of the
Special Function Registers (SFRs).
For easy reference, the registers are ordered according to two different keys (except for
GPRs):
• Ordered by address, to identify which register a given address references,
• Ordered by register name, to find the location of a specific register.
23.1
In their respective chapters, the functions and the layout of the SFRs are described in a
specific format which provides various details about each special function register. The
example below shows how to interpret these details.
REG_NAME
Name of Register
Bit
bit(field)name Explanation of bit(field)name
Elements:
REG_NAME
A16/A8
SFR/ESFR/XReg
(**) **
r/w
User’s Manual
15
*h
-
14
-
<empty for byte registers>
Register Set
Register Description Format
13
-
Function
Description of the functions controlled by the different possible values
of this bit(field).
12
-
11
Short name of this register
Long 16-bit address / Short 8-bit address
Register space (SFR, ESFR or External/XBUS Register)
Register contents after reset
0/1: defined value, ‘X’: undefined,
‘U’: unchanged (undefined (‘X’) after power up)
Access modes: can be read and/or write
Bits that are set/cleared by hardware are marked with
a shaded access box and an ‘h’ in it.
-
10
-
E/SFR (A16
9
-
8
-
23-1
std
rw
7
H
/A8
rwh
hw
H
6
)
read/
write
bit
rw
5
read
bit
4
r
write
C164CM/C164SM
bit
w
3
Reset Value: ****
2
Derivatives
Register Set
V1.0, 2002-02
bitfield
rw
1
0
H