P89LPC9321 NXP Semiconductors, P89LPC9321 Datasheet - Page 15

• Manufacturer Part Number: P89LPC9321
• Description: The P89LPC9321 is a single-chip microcontroller, available in low cost packages, basedon a high performance processor architecture that executes instructions in two to fourclocks, six times the rate of standard 80C51 devices
• Manufacturer: NXP Semiconductors

Table 4.
* indicates SFRs that are bit addressable.
Name
KBCON
KBMASK
KBPATN
OCRAH
OCRAL
OCRBH
OCRBL
OCRCH
OCRCL
OCRDH
OCRDL
P0*
Special function registers
Description
Keypad control
register
Keypad
interrupt mask
register
Keypad pattern
register
Output
compare A
register high
Output
compare A
register low
Output
compare B
register high
Output
compare B
register low
Output
compare C
register high
Output
compare C
register low
Output
compare D
register high
Output
compare D
register low
Port 0
Bit address
Bit address
SFR
addr.
EFH
EEH
FBH
FDH
FCH
FEH
94H
86H
93H
FAH
FFH
80H
Bit functions and addresses
…continued
T1/KB7
MSB
87
97
-
CMP1
/KB6
86
96
-
CMPREF
/KB5
85
95
-
CIN1A
/KB4
84
94
-
CIN1B
/KB3
83
93
-
CIN2A
/KB2
82
92
-
CIN2B
PATN
_SEL
/KB1
81
91
CMP2
KBIF
/KB0
LSB
80
90
Reset value
Hex
00
00
FF
00
00
00
00
00
00
00
00
[1]
[1]
Binary
xxxx xx00
0000 0000
1111 1111
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000