P89CV51RC2FA NXP Semiconductors, P89CV51RC2FA Datasheet - Page 12

• Manufacturer Part Number: P89CV51RC2FA
• Description: MCU 8-Bit 89C 80C51 CISC 32KB Flash 5V 44-Pin PLCC Tube
• Manufacturer: NXP Semiconductors

Specifications of P89CV51RC2FA

• Package: 44PLCC
• Device Core: 80C51
• Family Name: 89C
• Maximum Speed: 40 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Number Of Timers: 3
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Program Memory Type: Flash
• Operating Temperature: -40 to 85 °C

Table 4.
* indicates SFRs that are bit addressable.
[1]
Name
SPCR
SPSR
SPDAT
SP
TCON*
T2CON*
T2MOD
TH0
TH1
TH2
TL0
TL1
TL2
TMOD
WDTRST
Unimplemented bits in SFRs (labeled ‘-’) are ‘X’ (unknown) at all times. Unless otherwise specified, 1s should not be written to these bits since they may be used for other
purposes in future derivatives. The reset values shown for these bits are 0s although they are unknown when read.
Special function registers
Description
SPI Control Register
SPI Status Register
SPI Data
Stack Pointer
Timer/counter Control
Timer/counter 2 Control
Timer 2 Mode control
Timer 0 High
Timer 1 High
Timer 2 High
Timer 0 Low
Timer 1 Low
Timer 2 Low
Timer/counter 0 and 1 Mode
WatchDog Timer Reset
…continued
Bit address
Bit address
Bit address
SFR
address
CDH
CCH
D5H
AAH
C8H
C9H
8CH
8DH
8AH
8BH
A6H
86H
81H
88H
89H
T1GATE
MSB
SPIE
SPIF
TF1
TF2
CF
8F
87
-
-
-
-
-
-
-
-
-
-
WCOL
SPEN
T1C/T
EXF2
TR1
CE
8E
86
-
-
-
-
-
-
-
-
-
-
DORD
RCLK
T1M1
TF0
CD
85
8D
-
-
-
-
-
-
-
-
-
-
-
Bit functions and addresses
MSTR
TCLK
T1M0
TR0
CC
8C
84
-
-
-
-
-
-
-
-
-
-
-
T0GATE
EXEN2
CPOL
IE1
CB
8B
83
-
-
-
-
-
-
-
-
-
-
-
[1]
CPHA
T0C/T
TR2
IT1
CA
8A
82
-
-
-
-
-
-
-
-
-
-
-
SPR1
T2OE
T0M1
C/T2
IE0
C9
81
89
-
-
-
-
-
-
-
-
-
-
CP/RL2
DCEN
SPR0
T0M0
LSB
IT0
80
88
C8
-
-
-
-
-
-
-
-
-
-