P89LPC9321FN NXP Semiconductors, P89LPC9321FN Datasheet - Page 17

• Manufacturer Part Number: P89LPC9321FN
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin PDIP Tube
• Manufacturer: NXP Semiconductors

Table 4.
* indicates SFRs that are bit addressable.
Name
RTCH
RTCL
SADDR
SADEN
SBUF
SCON*
SSTAT
SP
SPCTL
SPSTAT
SPDAT
TAMOD
TCON*
TCR20*
TCR21
Special function registers
Description
RTC register
high
RTC register
low
Serial port
address
register
Serial port
address enable
Serial Port
data buffer
register
Serial port
control
Serial port
extended
status register
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
Bit address
Bit address
SFR
addr.
D2H
D3H
A9H
B9H
BAH
E2H
E1H
E3H
C8H
99H
98H
81H
8FH
88H
F9H
Bit functions and addresses
…continued
DBMOD
SM0/FE
TCOU2
PLEEN
SSIG
MSB
SPIF
TF1
9F
8F
-
HLTRN
INTLO
WCOL
SPEN
SM1
TR1
9E
8E
-
-
HLTEN
DORD
CIDIS
SM2
TF0
9D
8D
-
-
-
DBISEL
ALTCD
MSTR
T1M2
REN
TR0
9C
8C
-
-
PLLDV.3
ALTAB
CPOL
TB8
IE1
9B
FE
8B
-
-
PLLDV.2
TDIR2
CPHA
RB8
BR
IT1
9A
8A
-
-
TMOD21
PLLDV.1
SPR1
IE0
OE
99
89
TI
-
-
TMOD20
PLLDV.0
STINT
SPR0
T0M2
LSB
IT0
98
88
RI
-
Reset value
Hex
00
00
00
00
xx
00
00
07
04
00
00
00
00
00
00
[6]
[6]
Binary
0000 0000
0000 0000
0000 0000
0000 0000
xxxx xxxx
0000 0000
0000 0000
0000 0111
0000 0100
00xx xxxx
0000 0000
xxx0 xxx0
0000 0000
0000 0000
0xxx 0000