P89LPC938 NXP Semiconductors, P89LPC938 Datasheet - Page 13

• Manufacturer Part Number: P89LPC938
• Description: The P89LPC938 is a single-chip microcontroller, available in low cost packages, based ona high performance processor architecture that executes instructions in two to four clocks,six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

Table 4:
* indicates SFRs that are bit addressable.
Name
DPTR
FMADRH
FMADRL
FMCON
FMDATA
I2ADR
I2CON*
I2DAT
I2SCLH
I2SCLL
I2STAT
ICRAH
ICRAL
ICRBH
ICRBL
IEN0*
IEN1*
IEN2
IP0*
DPH
DPL
P89LPC938 Special function registers
Description
Data pointer (2 bytes)
Data pointer high
Data pointer low
Program Flash address high
Program Flash address low
Program Flash control (Read)
Program Flash control (Write)
Program Flash data
I
I
I
Serial clock generator/SCL
duty cycle register high
Serial clock generator/SCL
duty cycle register low
I
Input capture A register high
Input capture A register low
Input capture B register high
Input capture B register low
Interrupt enable 0
Interrupt enable 1
Interrupt enable 2
Interrupt priority 0
2
2
2
2
C slave address register
C control register
C data register
C status register
Bit address
Bit address
Bit address
Bit address
SFR
addr.
DBH
DDH
DCH
E7H
E6H
E4H
E4H
E5H
D8H
DAH
D9H
ABH
AAH
AFH
AEH
A8H
E8H
D5H
B8H
83H
82H
Bit functions and addresses
FMCMD.
I2ADR.6
…continued
BUSY
STA.4
MSB
EIEE
DF
AF
EA
EF
BF
7
-
-
-
FMCMD.
I2ADR.5
EWDRT
PWDRT
STA.3
I2EN
EST
DE
AE
EE
BE
6
-
-
FMCMD.
I2ADR.4
STA.2
EBO
PBO
STA
DD
AD
ED
BD
5
-
-
-
FMCMD.
I2ADR.3
ES/ESR
PS/PSR
ECCU
STA.1
STO
DC
AC
EC
BC
4
-
-
FMCMD.
I2ADR.2
STA.0
ESPI
HVA
ET1
PT1
DB
AB
EB
BB
SI
3
-
FMCMD.
I2ADR.1
HVE
EX1
PX1
DA
AA
AA
EA
EC
BA
2
0
-
FMCMD.
I2ADR.0
EADC
EKBI
ET0
PT0
SV
D9
A9
E9
B9
1
0
-
FMCMD.
CRSEL
EI2C
LSB
EX0
PX0
GC
D8
A8
E8
B8
OI
0
0
-
Reset value
Hex
00
00
00
00
70
00
00
00
00
00
F8
00
00
00
00
00
00
00
00
[2]
[2]
[2]
Binary
00000000
00000000
00000000
00000000
01110000
00000000
00000000
x00000x0
00000000
00000000
11111000
00000000
00000000
00000000
00000000
00000000
00x00000
00x00000
x0000000