CY8C27143, CY8C27243
CY8C27443, CY8C27543, CY8C27643
Register Reference
This chapter lists the registers of the CY8C27x43 PSoC device.
For detailed register information, reference the
PSoC Programmable System-on-Chip Technical Reference
Manual.
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.
Register Conventions
The register conventions specific to this section are listed in the
following table.
Table 10. Register Conventions
Convention
R
W
L
C
#
Description
Read register or bit(s)
Write register or bit(s)
Logical register or bit(s)
Clearable register or bit(s)
Access is bit specific
Table 11. Register Map Bank 0 Table: User Space
Access
Access
Access
Access
Addr
(0,Hex)
Addr
(0,Hex)
Addr
(0,Hex)
Addr
(0,Hex)
Name
PRT0DR
PRT0IE
PRT0GS
PRT0DM2
PRT1DR
PRT1IE
PRT1GS
PRT1DM2
PRT2DR
PRT2IE
PRT2GS
PRT2DM2
PRT3DR
PRT3IE
PRT3GS
PRT3DM2
PRT4DR
PRT4IE
PRT4GS
PRT4DM2
PRT5DR
PRT5IE
PRT5GS
PRT5DM2
Name
Name
Name
00
RW
01
RW
02
RW
03
RW
04
RW
05
RW
06
RW
07
RW
08
RW
09
RW
0A
RW
0B
RW
0C
RW
0D
RW
0E
RW
0F
RW
10
RW
11
RW
12
RW
13
RW
14
RW
15
RW
16
RW
17
RW
18
19
1A
1B
1C
1D
1E
1F
DBB00DR0
20
#
AMX_IN
DBB00DR1
21
W
DBB00DR2
22
RW
DBB00CR0
23
#
ARF_CR
DBB01DR0
24
#
CMP_CR0
DBB01DR1
25
W
ASY_CR
Blank fields are Reserved and must not be accessed.
40
41
42
43
44
45
46
47
48
49
4A
4B
4C
4D
4E
4F
50
51
52
53
54
55
56
57
58
59
5A
5B
5C
5D
5E
5F
60
61
62
63
64
65
ASC10CR0
ASC10CR1
ASC10CR2
ASC10CR3
ASD11CR0
ASD11CR1
ASD11CR2
ASD11CR3
ASC12CR0
ASC12CR1
ASC12CR2
ASC12CR3
ASD13CR0
ASD13CR1
ASD13CR2
ASD13CR3
ASD20CR0
ASD20CR1
ASD20CR2
ASD20CR3
ASC21CR0
ASC21CR1
ASC21CR2
ASC21CR3
ASD22CR0
ASD22CR1
ASD22CR2
ASD22CR3
ASC23CR0
ASC23CR1
ASC23CR2
ASC23CR3
RW
RW
#
#
80
81
82
83
84
85
86
87
88
89
8A
8B
8C
8D
8E
8F
90
91
92
93
94
95
96
97
98
99
9A
9B
9C
9D
9E
9F
A0
A1
A2
A3
A4
A5
# Access is bit specific.
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
I2C_CFG
I2C_SCR
I2C_DR
I2C_MSCR
INT_CLR0
INT_CLR1
INT_CLR3
INT_MSK3
INT_MSK0
INT_MSK1
INT_VC
RES_WDT
DEC_DH
DEC_DL
C0
C1
C2
C3
C4
C5
C6
C7
C8
C9
CA
CB
CC
CD
CE
CF
D0
D1
D2
D3
D4
D5
D6
D7
D8
D9
DA
DB
DC
DD
DE
DF
E0
E1
E2
E3
E4
E5
RW
#
RW
#
RW
RW
RW
RW
RW
RW
RC
W
RC
RC
Document Number: 38-12012 Rev. *M
Page 16 of 53
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