P89C669 View Datasheet(PDF) - Philips Electronics
Part Name
Description
Manufacturer
P89C669
Philips Electronics
P89C669 Datasheet PDF : 33 Pages
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Table 5:
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Special function registers…continued
Name
Description
SFR
addr.
Bit functions and addresses
MSB
LSB
Reset
value
DPH
Data Pointer HIGH
83H
00H
DPL
Data Pointer LOW
82H
00H
EPL [2]
Extended Data Pointer LOW
FCH[3]
00H
EPM [2]
Extended Data Pointer Middle FDH[3]
00H
EPH [2]
Extended Data Pointer HIGH
FEH[3]
00H
I2ADR
I2C Slave Address Register
94H addr.6
addr.5 addr.4 addr.3 addr.2 addr.1 addr.0 GC
00H
I2CON
I2C Control Register
91H -
I2EN
STA
STO
SI
AA
-
CRSEL 00H
I2DAT
I2C Data Register
93H
I2CLH
I2C Clock Generator HIGH
96H
00H
Register
I2CLL
I2C Clock Generator LOW
95H
00H
Register
I2STA
I2C Status Register
92H code.4
code.3 code.2 code.1 code.0 0
0
0
F8H
Bit address AF
AE
AD
AC
AB
AA
A9
A8
IEN0 [1]
Interrupt Enable 0
A8H EA
EC
ET2
ES0/
ET1
EX1
ET0
EX0
00H
ES0R
Bit address EF
EE
ED
EC
EB
EA
E9
E8
IEN1 [1]
Interrupt Enable 1
E8H -
-
-
EI2C
-
ES1T ES0T ES1/
00H[6]
ES1R
Bit address BF
BE
BD
BC
BB
BA
B9
B8
IP0 [1]
Interrupt Priority
B8H -
PPC
PT2
PS0/
PT1
PX1
PT0
PX0
00H
PS0R
IP0H
Interrupt Priority 0 HIGH
B7H -
PPCH PT2H PS0H/ PT1H PX1H PT0H PX0H 00H
PS0RH
Bit address FF
FE
FD
FC
FB
FA
F9
F8
IP1 [1]
Interrupt Priority 1
F8H -
-
-
PI2C
-
PS1T PS0T PS1/
00H[6]
PS1R
IP1H
Interrupt Priority 1 HIGH
F7H -
-
-
PI2CH -
PS1TH PS0TH PS1H/ 00H[6]
PS1RH
MXCON [2] MX Control Register
FFH[3] -
-
-
-
-
EAM
ESMM EIFM
00H[6]
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