CY8C20X34 CYPRESS [Cypress Semiconductor], CY8C20X34 Datasheet - Page 135

• Manufacturer Part Number: CY8C20X34
• Description: Technical Reference Manual (TRM)
• Manufacturer: CYPRESS [Cypress Semiconductor]

The Registers section discusses the registers of the PSoC CY8C20x34 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 General Conventions
The register conventions specific to this section and the
Register Reference chapter are listed in the following table.
Register Conventions
PSoC CY8C20x34 TRM, Version 1.0
Empty, grayed-out
table cell
‘x’ before the comma
in an address
‘x’ in a register name
R
W
O
L
C
#
Section E:
Register Reference on page
Convention
Illustrates a reserved bit or group of bits.
Indicates the register exists in register bank 1 and
register bank 2.
Indicates that there are multiple instances/address
ranges of the same register.
Read register or bit(s)
Write register or bit(s)
Only a read/write register or bit(s).
Logical register or bit(s)
Clearable register or bit(s)
Access is bit specific
139.
Description
Registers
Register Mapping Tables
The PSoC device has a total register address space of 512
bytes. The register space is also referred to as IO 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.
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