TC1736 Datasheet, PDF (13/123 Pages) Infineon Technologies AG – 32-Bit Single-Chip Microcontroller

TC1736
Introduction
per second, 1 MBaud/Mbit are 1000000 characters/bits per second, and 1 MHz is
1,000,000 Hz.
• Data format quantities are defined as follows:
– Byte = 8-bit quantity
– Half-word = 16-bit quantity
– Word = 32-bit quantity
– Double-word = 64-bit quantity
2.1.3 Reserved, Undefined, and Unimplemented Terminology
In tables where register bit fields are defined, the following conventions are used to
indicate undefined and unimplemented function. Furthermore, types of bits and bit fields
are defined using the abbreviations as shown in Table 2-1.
Table 2-1 Bit Function Terminology
Function of Bits Description
Unimplemented,
Reserved
Register bit fields named 0 indicate unimplemented functions
with the following behavior.
• Reading these bit fields returns 0.
• These bit fields should be written with 0 if the bit field is
defined as r or rh.
• These bit fields have to be written with 0 if the bit field is
defined as rw.
These bit fields are reserved. The detailed description of these
bit fields can be found in the register descriptions.
rw
The bit or bit field can be read and written.
rwh
As rw, but bit or bit field can be also set or reset by hardware.
r
The bit or bit field can only be read (read-only).
w
The bit or bit field can only be written (write-only). A read to this
register will always give a default value back.
rh
This bit or bit field can be modified by hardware (read-hardware,
typical example: status flags). A read of this bit or bit field give
the actual status of this bit or bit field back. Writing to this bit or
bit field has no effect to the setting of this bit or bit field.
Data Sheet
9
V1.1, 2009-08