Cypress PSoC CY8CTMG20 Series, Technical Reference Manual

Page: 183 / 308

PSoC CY8CTMG20x and CY8CTST200 TRM, Document No. 001-53603 Rev. *C 183
Section E: Registers
The Registers section discusses the registers of the PSoC device. It lists all the registers in mapping tables, in address order.
For easy reference, each register is linked to the page of a detailed description located in the next chapter. This section
encompasses the following chapter:
■
Register Reference chapter on page 187 .
Register General Conventions
The register conventions specific to this section and the
Register Reference chapter are listed in the following table:
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: Bank 0 (user space) and Bank
1 (configuration space). The XIO bit in the Flag register
(CPU_F) 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.
Refer to the individual PSoC device data sheets for device-
specific register mapping information.
Register Conventions
Convention Description
Empty, grayed-out
table cell
Illustrates a reserved bit or group of bits.
‘x’ before the comma
in an address Indicates the register exists in register bank 1 and
register bank 2.
‘x’ in a register name
Indicates that there are multiple instances/address
ranges of the same register.
R Read register or bit(s).
W Write register or bit(s).
O Only a read/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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