CY8C24x23A Final Data Sheet
2. Register Reference
Register Map Bank 0 Table: User Space
PRT0DR
PRT0IE
PRT0GS
PRT0DM2
PRT1DR
PRT1IE
PRT1GS
PRT1DM2
PRT2DR
PRT2IE
PRT2GS
PRT2DM2
00
01
02
03
04
05
06
07
08
09
0A
0B
0C
0D
0E
0F
10
11
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
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
66
67
68
69
6A
6B
6C
6D
6E
6F
70
71
72
73
74
75
76
77
78
79
7A
7B
7C
7D
7E
7F
ASC10CR0
ASC10CR1
ASC10CR2
ASC10CR3
ASD11CR0
ASD11CR1
ASD11CR2
ASD11CR3
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
A6
A7
A8
A9
AA
AB
AC
AD
AE
AF
B0
B1
B2
B3
B4
B5
B6
B7
B8
B9
BA
BB
BC
BD
BE
BF
RW
RW
RW
RW
RW
RW
RW
RW
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
E6
E7
E8
E9
EA
EB
EC
ED
EE
EF
F0
ASD20CR0
ASD20CR1
ASD20CR2
ASD20CR3
ASC21CR0
ASC21CR1
ASC21CR2
ASC21CR3
RW
RW
RW
RW
RW
RW
RW
RW
12
13
14
15
16
17
18
19
1A
1B
1C
1D
1E
1F
20
21
22
23
24
25
26
27
28
29
2A
2B
2C
2D
2E
2F
30
31
32
33
34
35
36
37
38
39
3A
3B
3C
3D
3E
3F
I2C_CFG
I2C_SCR
I2C_DR
I2C_MSCR
INT_CLR0
INT_CLR1
RW
#
RW
#
RW
RW
INT_CLR3
INT_MSK3
RW
RW
DBB00DR0
DBB00DR1
DBB00DR2
DBB00CR0
DBB01DR0
DBB01DR1
DBB01DR2
DBB01CR0
DCB02DR0
DCB02DR1
DCB02DR2
DCB02CR0
DCB03DR0
DCB03DR1
DCB03DR2
DCB03CR0
#
AMX_IN
RW
INT_MSK0
INT_MSK1
INT_VC
RES_WDT
DEC_DH
DEC_DL
DEC_CR0
DEC_CR1
MUL_X
RW
RW
RC
W
RC
RC
RW
RW
W
W
R
R
RW
RW
RW
RW
W
RW
#
ARF_CR
CMP_CR0
ASY_CR
CMP_CR1
RW
#
#
#
W
RW
#
RW
#
W
RW
#
MUL_Y
MUL_DH
MUL_DL
ACC_DR1
ACC_DR0
ACC_DR3
ACC_DR2
#
W
RW
#
ACB00CR3
ACB00CR0
ACB00CR1
ACB00CR2
ACB01CR3
ACB01CR0
ACB01CR1
ACB01CR2
RW
RW
RW
RW
RW
RW
RW
RW
RDI0RI
RDI0SYN
RDI0IS
RDI0LT0
RDI0LT1
RDI0RO0
RDI0RO1
RW
RW
RW
RW
RW
RW
RW
F1
F2
F3
F4
F5
F6
F7
F8
CPU_F
RL
F9
FA
FB
FC
FD
FE
FF
CPU_SCR1
CPU_SCR0
#
#
Blank fields are Reserved and should not be accessed.
# Access is bit specific.
September 8, 2004
Document No. 38-12028 Rev. *B
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