CY8C21345

CY8C22345, CY8C22545

Document Number: 001-43084 Rev. *M

Page 10 of 34

Registers

This section lists the registers of this PSoC device family by mapping tables. For detailed register information, refer the PSoC

Programmable System-on Chip Technical Reference Manual.

Register Conventions

Register Mapping Tables

The PSoC device has a total register address space of 512

bytes. The register space is also referred to as I/O space and is

broken into two parts. The XIO bit in the Flag register determines

which bank the user is currently in. When the XIO bit is set, the

user is said to be in the “extended” address space or the

“configuration” registers.

Note In the following register mapping tables, blank fields are

Reserved and must not be accessed.

Table 4. Abbreviations

Convention

Description

RW

Read and write register or bit(s)

R

Read register or bit(s)

W

Write register or bit(s)

L

Logical register or bit(s)

C

Clearable register or bit(s)

#

Access is bit specific

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