P89V51RB2FA NXP Semiconductors, P89V51RB2FA Datasheet - Page 52

• Manufacturer Part Number: P89V51RB2FA
• Description: MCU 8BIT 80C51 16K FLASH, PLCC44
• Manufacturer: NXP Semiconductors

Specifications of P89V51RB2FA

• Controller Family/series: (8051) 8052
• Core Size: 8bit
• No. Of I/o's: 32
• Program Memory Size: 16KB
• Ram Memory Size: 1KB
• Cpu Speed: 40MHz
• Oscillator Type: External Only
• No. Of Timers: 4
• No. Of Pwm: RoHS Compliant

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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