Cypress CY8C21334, CY8C21634 Register Reference, Register Conventions, Register Mapping Tables

CY8C21634, CY8C21534

CY8C21434, CY8C21334, CY8C21234

Register Reference

This chapter lists the registers of the CY8C21x34 PSoC device. For detailed register information, refer the PSoC Programmable System-on-Chip Technical Reference Manual.

Register Conventions

The register conventions specific to this section are listed in Table 8.

Table 8. 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

Register Mapping Tables

The PSoC device has a total register address space of 512 bytes. The register space is referred to as IO space and is divided into two banks. The XOI bit in the Flag register (CPU_F) determines which bank the user is currently in. When the XOI bit is set the user is in Bank 1.

Note In the following register mapping tables, blank fields are Reserved and must not be accessed.

Table 9. Register Map 0 Table: User Space

Name	Addr (0,Hex)	Access	Name	Addr (0,Hex)	Access	Name	Addr (0,Hex)	Access	Name	Addr (0,Hex)	Access
PRT0DR	00	RW		40		ASE10CR0	80	RW		C0
PRT0IE	01	RW		41			81			C1
PRT0GS	02	RW		42			82			C2
PRT0DM2	03	RW		43			83			C3
PRT1DR	04	RW		44		ASE11CR0	84	RW		C4
PRT1IE	05	RW		45			85			C5
PRT1GS	06	RW		46			86			C6
PRT1DM2	07	RW		47			87			C7
PRT2DR	08	RW		48			88			C8
PRT2IE	09	RW		49			89			C9
PRT2GS	0A	RW		4A			8A			CA
PRT2DM2	0B	RW		4B			8B			CB
PRT3DR	0C	RW		4C			8C			CC
PRT3IE	0D	RW		4D			8D			CD
PRT3GS	0E	RW		4E			8E			CE
PRT3DM2	0F	RW		4F			8F			CF
	10			50			90		CUR_PP	D0	RW
	11			51			91		STK_PP	D1	RW
	12			52			92			D2
	13			53			93		IDX_PP	D3	RW
	14			54			94		MVR_PP	D4	RW
	15			55			95		MVW_PP	D5	RW
	16			56			96		I2C_CFG	D6	RW
	17			57			97		I2C_SCR	D7	#
	18			58			98		I2C_DR	D8	RW
	19			59			99		I2C_MSCR	D9	#
	1A			5A			9A		INT_CLR0	DA	RW
	1B			5B			9B		INT_CLR1	DB	RW
	1C			5C			9C			DC
	1D			5D			9D		INT_CLR3	DD	RW
	1E			5E			9E		INT_MSK3	DE	RW
	1F			5F			9F			DF
Blank fields are Reserved and must not be accessed.						# Access is bit specific.

Document Number: 38-12025 Rev. *O Page 15 of 45

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