Datasheet

CY8C21x34B
Document Number: 001-67345 Rev. *E Page 16 of 49
Register Reference
This chapter lists the registers of the CY8C21x34B PSoC device. For detailed register information, see the PSoC Technical Reference
Manual.
Register Conventions
The register conventions specific to this section are listed in Table 7.
Register Mapping Tables
The PSoC device has a total register address space of 512 bytes. The register space is referred to as I/O space and is divided into
two banks, Bank 0 and Bank 1. The XOI bit in the Flag register (CPU_F) determines which bank the user is currently in. When the
XOI bit is set to 1, the user is in Bank 1.
Note In the following register mapping tables, blank fields are reserved and must not be accessed.
Table 7. Register Conventions
Convention Description
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