NXP Semiconductors P89LPC9321 UM10310 - Manual (Page 16)

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UM10
310
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©
NXP
B.V
. 2010.
Al
l r
ig
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ts
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e
s
e
rv
ed.
User m
a
nu
al
Rev
. 2
— 1 No
vemb
e
r 2010
16 of
139
N
X
P Semi
conductor
s
UM10310
P8
9L
PC
93
21
U
s
e
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RTCH RTC register
high D2H 00 [6] 0000 0000
RTCL RTC register
low D3H 00 [6] 0000 0000
SADDR Serial port
address
register A9H 00 0000 0000
SADEN Serial port
address enable B9H 00 0000 0000
SBUF Serial Port data
buffer register 99H xx xxxx xxxx
Bit address 9F 9E 9D 9C 9B 9A 99 98
SCON* Serial port
control 98H SM0/FE SM1 SM2 REN TB8 RB8 TI RI 00 0000 0000
SSTAT Serial port
extended
status register BAH DBMOD INTLO CIDIS DBISEL FE BR OE STINT 00 0000 0000
SP Stack pointer 81H 07 0000 0111
SPCTL SPI control
register E2H SSIG SPEN DORD MSTR CPOL CPHA SPR1 SPR0 04 0000 0100
SPSTAT SPI status
register E1H SPIF WCOL - - - - - - 00 00xx xxxx
SPDAT SPI data
register E3H 00 0000 0000
TAMOD Timer 0 and 1
auxiliary mode 8FH - - - T1M2 - - - T0M2 00 xxx0 xxx0
Bit address 8F 8E 8D 8C 8B 8A 89 88
TCON* Timer 0 and 1
control 88H TF1 TR1 TF0 TR0 IE1 IT1 IE0 IT0 00 0000 0000
TCR20* CCU control
register 0 C8H PLEEN HLTRN HLTEN ALTCD ALTAB TDIR2 TMOD21 TMOD20 00 0000 0000
TCR21 CCU control
register 1 F9H TCOU2 - - - PLLDV.3 PLLDV.2 PLLDV.1 PLLDV.0 00 0xxx 0000
Table 2. Special function registers …continued
* indicates SFRs that are bit addressable.
Name Description SFR
addr. Bit functions and addresses Reset value
MSB LSB Hex Binary