80CL31 Datasheet, PDF (8/40 Pages) NXP Semiconductors – Low-voltage single-chip 8-bit microcontrollers

Philips Semiconductors
Low-voltage single-chip 8-bit microcontrollers
Product specification
80CL31/80CL51
REGISTER
MNEMONIC
BIT ADDRESS
DIRECT
BYTE ADDRESS
(HEX)
IP1
FF
FE
FD
FC
FB
FA
F9
F8
F8H
B
F7
F6
F5
F4
F3
F2
F1
F0
F0H
IX1
E9H
IEN1
EF
EE
ED
EC
EB
EA
E9
E8
E8H
ACC
E7
E6
E5
E4
E3
E2
E1
E0
EOH
PSW
D7
D6
D5
D4
D3
D2
D1
D0
D0H
IRQ1
C7
C6
C5
C4
C3
C2
C1
C0
IP0
BD
BC
BB
BA
B9
B8
C0H
B8H
P3
B7
B6
B5
B4
B3
B2
B1
B0
B0H
IEN0
AF
AE
AD
AC
AB
AA
A9
A8
A8H
P2
A7
A6
A5
A4
A3
A2
A1
A0
A0H
S0BUF
99H
9F
9E
9D
9C
9B
9A
99
98
98H
S0CON
P1
97
96
95
94
93
92
91
90
90H
TH1
8DH
TH0
8CH
TL1
8BH
TL0
8AH
TMOD
89H
TCON
8F
8E
8D
8C
8B
8A
89
88
88H
PCON
87H
DPH
83H
DPL
82H
SP
81H
P0
87
86
85
84
83
82
81
80
80H
SFRs CONTAINING DIRECTLY
ADDRESSABLE BITS
January 1995
Figure 2. Special Function Registers
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