p89c669 NXP Semiconductors, p89c669 Datasheet - Page 14

• Manufacturer Part Number: p89c669
• Description: P89c669 80c51 8-bit Microcontroller Family With Extended Memory; 96 Kb Flash With 2 Kb Ram
• Manufacturer: NXP Semiconductors

Table 5:
Name
DPH
DPL
EPL
EPM
EPH
I2ADR
I2CON
I2DAT
I2CLH
I2CLL
I2STA
IEN0
IEN1
IP0
IP0H
IP1
IP1H
MXCON
[1]
[1]
[2]
[2]
[2]
[1]
[1]
[2]
xxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxx xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxx xxxxxxxxxxxxxxxxxxxx xxx
Special function registers
Description
Data Pointer HIGH
Data Pointer LOW
Extended Data Pointer LOW
Extended Data Pointer Middle
Extended Data Pointer HIGH
I
I
I
I
Register
I
Register
I
Interrupt Enable 0
Interrupt Enable 1
Interrupt Priority
Interrupt Priority 0 HIGH
Interrupt Priority 1
Interrupt Priority 1 HIGH
MX Control Register
2
2
2
2
2
2
C Slave Address Register
C Control Register
C Data Register
C Clock Generator HIGH
C Clock Generator LOW
C Status Register
…continued
Bit address AF
Bit address EF
Bit address BF
Bit address FF
SFR
addr.
83H
82H
FCH
FDH
FEH
94H
91H
93H
96H
95H
92H
A8H
E8H
B8H
B7H
F8H
F7H
FFH
[3]
[3]
[3]
[3]
Bit functions and addresses
MSB
addr.6
-
code.4
EA
-
-
-
-
-
-
I2EN
code.3
EC
-
PPC
PPCH
-
-
-
addr.5
AE
EE
BE
FE
addr.4
STA
code.2
AD
ET2
ED
-
BD
PT2
PT2H
FD
-
-
-
addr.3
STO
code.1
AC
ES0/
ES0R
EC
EI2C
BC
PS0/
PS0R
PS0H/
PS0RH
FC
PI2C
PI2CH
-
addr.2
SI
code.0
AB
ET1
EB
-
BB
PT1
PT1H
FB
-
-
-
addr.1
AA
0
AA
EX1
EA
ES1T
BA
PX1
PX1H
FA
PS1T
PS1TH
EAM
addr.0
-
0
A9
ET0
E9
ES0T
B9
PT0
PT0H
F9
PS0T
PS0TH
ESMM
LSB
GC
CRSEL
0
A8
EX0
E8
ES1/
ES1R
B8
PX0
PX0H
F8
PS1/
PS1R
PS1H/
PS1RH
EIFM
Reset
value
00H
00H
00H
00H
00H
00H
00H
00H
00H
F8H
00H
00H
00H
00H
00H
00H
00H
[6]
[6]
[6]
[6]