RM0312 datasheet(17/275 Pages) STMICROELECTRONICS

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RM0312

Memory and register map

For details on the memory map, I/O port hardware register map and CPU/SWIM/debug

module/interrupt controller registers, refer to the product datasheets.

1.1

In the register descriptions of each chapter in this reference manual, the following

abbreviations are used:

Table 1. List of abbreviations

Abbreviation

Description

read/write (rw)

Software can read and write to these bits.

read-only (r)

Software can only read these bits.

write only (w)

Software can only write to this bit. Reading the bit returns a meaningless

value.

read/write once (rwo)

Software can only write once to this bit but can read it at any time. Only a

reset can return this bit to its reset value.

read/clear (rc_w1)

Software can read and clear this bit by writing 1. Writing ‘0’ has no effect on

the bit value.

read/clear (rc_w0)

Software can read and clear this bit by writing 0. Writing ‘1’ has no effect on

the bit value.

read/set (rs)

Software can read and set this bit. Writing ‘0’ has no effect on the bit value.

read/clear by read

(rc_r)

Software can read this bit. Reading this bit automatically clears it to ‘0’.

Writing ‘0’ has no effect on the bit value.

Reserved (Res.)

Reserved bit, must be kept at reset value.

RM0312 Datasheet(PDF) 17 Page - STMicroelectronics