P89LPC931FDH NXP Semiconductors, P89LPC931FDH Datasheet - Page 13

• Manufacturer Part Number: P89LPC931FDH
• Description: MCU 8-Bit 89LP 80C51 CISC 8KB Flash 2.5V/3.3V 28-Pin TSSOP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89LPC931FDH

• Package: 28TSSOP
• Device Core: 80C51
• Family Name: 89LP
• Maximum Speed: 18 MHz
• Ram Size: 256 Byte
• Program Memory Size: 8 KB
• Operating Supply Voltage: 2.5|3.3 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 26
• Interface Type: I2C/SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 2

Table 4:
* indicates SFRs that are bit addressable.
Name
I2SCLH
I2SCLL
I2STAT
IEN0*
IEN1*
IP0*
IP0H
IP1*
IP1H
KBCON
KBMASK
KBPATN
P0*
P1*
P2*
P3*
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Special function registers
Description
Serial clock generator/SCL
duty cycle register HIGH
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 2
Port 3
2
C status register
Bit address
Bit address
Bit address
Bit address
Bit address
Bit address
Bit address
Bit address
…continued
SFR
addr.
DDH
DCH
D9H
A8H
E8H
B8H
B7H
F8H
F7H
94H
86H
93H
80H
90H
A0H
B0H
Bit functions and addresses
T1/KB7
STA.4
MSB
AF
EA
EF
BF
A7
B7
FF
87
97
-
-
-
-
-
-
-
-
-
EWDRT
PWDRT
PWDRT
CMP1
STA.3
PSTH
/KB6
EST
PST
AE
EE
BE
FE
A6
B6
86
96
H
-
-
-
-
CMPREF
SPICLK
PBOH
STA.2
EBO
PBO
/KB5
RST
AD
ED
BD
FD
A5
B5
85
95
-
-
-
-
-
ES/ESR
PS/PSR
CIN1A
PSRH
STA.1
PSH/
/KB4
INT1
BC
AC
EC
FC
A4
SS
B4
84
94
-
-
-
-
-
PSPIH
CIN1B
STA.0
PT1H
INT0/
MISO
ESPI
PSPI
/KB3
SDA
ET1
PT1
AB
EB
BB
FB
A3
B3
83
93
-
-
T0/SCL
CIN2A
PX1H
MOSI
/KB2
PCH
EX1
PX1
AA
EA
EC
BA
FA
PC
A2
B2
82
92
0
-
-
PKBIH
CIN2B
XTAL1
PT0H
PATN
_SEL
EKBI
PKBI
/KB1
RXD
ET0
PT0
A9
E9
B9
F9
A1
B1
81
91
0
-
PI2CH
XTAL2
PX0H
CMP2
EI2C
PI2C
KBIF
/KB0
LSB
TXD
EX0
PX0
A8
E8
B8
A0
B0
F8
80
90
0
-
Reset value
Hex
00
00
F8
00
00
00
00
00
00
00
00
FF
[1]
[1]
[1]
[1]
[1]
[1]
Binary
00000000
00000000
11111000
00000000
00x00000
x0000000
x0000000
00x00000
00x00000
xxxxxx00
00000000
11111111
[1]
[1]
[1]
[1]