P89LPC938 NXP Semiconductors, P89LPC938 Datasheet - Page 16

• 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
SP
SPCTL
SPSTAT
SPDAT
TAMOD
TCON*
TCR20*
TCR21
TH0
TH1
TH2
TICR2
TIFR2
TISE2
TL0
TL1
TL2
TMOD
TOR2H
TOR2L
TPCR2H
TPCR2L
TRIM
WDCON
P89LPC938 Special function registers
Description
Stack pointer
SPI control register
SPI status register
SPI data register
Timer 0 and 1 auxiliary mode
Timer 0 and 1 control
CCU control register 0
CCU control register 1
Timer 0 high
Timer 1 high
CCU timer high
CCU interrupt control register
CCU interrupt flag register
CCU interrupt status encode
register
Timer 0 low
Timer 1 low
CCU timer low
Timer 0 and 1 mode
CCU reload register high
CCU reload register low
Prescaler control register high CBH
Prescaler control register low
Internal oscillator trim register
Watchdog control register
Bit address
SFR
addr.
CDH
DEH
CCH
CEH
CAH TPCR2L.
E2H
E1H
E3H
C8H
8CH
8DH
C9H
E9H
8AH
8BH
CFH
A7H
81H
8FH
88H
F9H
89H
96H
Bit functions and addresses
T1GATE
TCOU2
RCCLK
…continued
PLEEN
TOIE2
TOIF2
PRE2
MSB
SSIG
SPIF
TF1
8F
7
-
-
-
TOCIE2D TOCIE2C TOCIE2B TOCIE2A
TPCR2L.
TOCF2D TOCF2C TOCF2B
ENCLK
HLTRN
WCOL
T1C/T
SPEN
PRE1
TR1
8E
6
-
-
-
-
TPCR2L.
HLTEN
TRIM.5
DORD
PRE0
T1M1
TF0
8D
5
-
-
-
-
-
TPCR2L.
TRIM.4
ALTCD
MSTR
T1M2
T1M0
TR0
8C
4
-
-
-
-
-
TPCR2L.
PLLDV.3
TOCF2A
T0GATE
TRIM.3
ALTAB
CPOL
IE1
8B
3
-
-
-
-
-
TPCR2L.
PLLDV.2
ENCINT.
WDRUN
TRIM.2
CPHA
TDIR2
T0C/T
IT1
8A
2
2
-
-
-
-
-
TPCR2H.
TMOD21 TMOD20 00
TPCR2L.
PLLDV.1
ENCINT.
TICIE2B
WDTOF
TICF2B
TRIM.1
SPR1
T0M1
IE0
89
1
1
1
-
-
TPCR2H.
TPCR2L.
PLLDV.0 00
ENCINT.
TICIE2A 00
TICF2A
WDCLK
TRIM.0
SPR0
T0M2
T0M0
LSB
IT0
88
0
0
0
-
Reset value
Hex
07
04
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
00
[5] [4]
[6] [4]
Binary
00000111
00000100
00xxxxxx
00000000
xxx0xxx0
00000000
00000000
0xxx0000
00000000
00000000
00000000
00000x00
00000x00
xxxxx000
00000000
00000000
00000000
00000000
00000000
00000000
xxxxxx00
00000000