P89LPC920_921_922_9221 NXP Semiconductors, P89LPC920_921_922_9221 Datasheet - Page 11

• Manufacturer Part Number: P89LPC920_921_922_9221
• Description: The P89LPC920/921/922/9221 are single-chip microcontrollers designed forapplications demanding high-integration, low cost solutions over a wide range ofperformance requirements
• Manufacturer: NXP Semiconductors

Table 4:
* indicates SFRs that are bit addressable.
Name
I2SCLL
I2STAT
IEN0*
IEN1*
IP0*
IP0H
IP1*
IP1H
KBCON
KBMASK
KBPATN
P0*
P1*
P3*
P0M1
P0M2
P1M1
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Special function registers
Description
Serial clock generator/SCL
duty cycle register LOW
I
Interrupt enable 0
Interrupt enable 1
Interrupt priority 0
Interrupt priority 0 HIGH
Interrupt priority 1
Interrupt priority 1 HIGH
Keypad control register
Keypad interrupt mask
register
Keypad pattern register
Port 0
Port 1
Port 3
Port 0 output mode 1
Port 0 output mode 2
Port 1 output mode 1
2
C status register
Bit address
Bit address
Bit address
Bit address
Bit address
Bit address
Bit address
…continued
SFR
addr.
DCH
D9H
A8H
E8H
B8H
B7H
F8H
F7H
94H
86H
93H
80H
90H
B0H
84H
85H
91H
Bit functions and addresses
(P0M1.7) (P0M1.6) (P0M1.5) (P0M1.4) (P0M1.3) (P0M1.2) (P0M1.1) (P0M1.0) FF
(P0M2.7) (P0M2.6) (P0M2.5) (P0M2.4) (P0M2.3) (P0M2.2) (P0M2.1) (P0M2.0) 00
(P1M1.7) (P1M1.6)
T1/KB7
STA.4
MSB
AF
EA
EF
BF
FF
B7
87
97
-
-
-
-
-
-
-
-
EWDRT
PWDRT
PWDRT
CMP1
STA.3
PSTH
/KB6
EST
PST
AE
BE
EE
FE
B6
86
96
H
-
-
-
CMPREF
PBOH
STA.2
EBO
PBO
/KB5
RST
AD
ED
BD
FD
B5
85
95
-
-
-
-
-
-
(P1M1.4) (P1M1.3) (P1M1.2) (P1M1.1) (P1M1.0) D3
ES/ESR
PS/PSR
CIN1A
PSRH
STA.1
PSH/
/KB4
INT1
AC
EC
BC
FC
B4
84
94
-
-
-
-
-
CIN1B
STA.0
PT1H
INT0/
/KB3
SDA
ET1
PT1
AB
EB
BB
FB
B3
83
93
-
-
-
-
-
T0/SCL
CIN2A
PX1H
PCH
/KB2
EX1
PX1
AA
EA
EC
BA
PC
FA
B2
82
92
0
-
-
PKBIH
CIN2B
XTAL1
PT0H
PATN
_SEL
EKBI
PKBI
/KB1
RXD
ET0
PT0
A9
E9
B9
F9
B1
81
91
0
PI2CH
XTAL2
CMP2
PX0H
EI2C
PI2C
KBIF
/KB0
LSB
EX0
PX0
TXD
A8
E8
B8
F8
B0
80
90
0
Reset value
Hex
00
F8
00
00
00
00
00
00
00
00
FF
[1]
[1]
[1]
[1]
[1]
[1]
[1]
[1]
Binary
00000000
11111000
00000000
00x00000
x0000000
x0000000
00x00000
00x00000
xxxxxx00
00000000
11111111
11111111
00000000
11x1xx11
[1]
[1]
[1]