P89V51RD2FN NXP Semiconductors, P89V51RD2FN Datasheet - Page 52

• Manufacturer Part Number: P89V51RD2FN
• Description: MCU 8-Bit 89V 80C51 CISC 64KB Flash 5V 40-Pin PDIP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89V51RD2FN

• Package: 40PDIP
• Device Core: 80C51
• Family Name: 89V
• Maximum Speed: 40 MHz
• Ram Size: 1 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

NXP Semiconductors
P89V51RB2_RC2_RD2_5
Product data sheet
Fig 24. PCA compare mode
CCAPnL
write to
0
CCAPnH
write to
6.9.3 High-speed output mode
1
reset
In this mode
toggle each time a match occurs between the PCA counter and the module’s capture
registers. To activate this mode the TOG, MAT, and ECOM bits in the module’s CCAPMn
SFR must be set.
enable
16-BIT COMPARATOR
CCAPnH
PCA timer/counter
CH
CF
-
(Figure
ECOMn
CCAPnL
CR
CL
25) the CEX output (on port 1) associated with the PCA module will
Rev. 05 — 12 November 2009
CAPPn
0
-
match
CAPNn
CCF4
0
(to CCFn)
MATn
CCF3
P89V51RB2/RC2/RD2
1
8-bit microcontrollers with 80C51 core
TOGn
CCF2
0
PWMn
CCF1
0
ECCFn
CCF0
© NXP B.V. 2009. All rights reserved.
CCAPMn, n = 0 to 4
(DAH to DEH)
CCON
(D8H)
PCA
interrupt
002aaa539
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