P89LV51RD2BA PHILIPS [NXP Semiconductors], P89LV51RD2BA Datasheet - Page 31

• Manufacturer Part Number: P89LV51RD2BA
• Description: 8-bit 80C51 3 V low power 64 kB Flash microcontroller with 1 kB RAM
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
9397 750 14342
Product data
7.4 Timer 2
Timer 2 is a 16-bit Timer/Counter which can operate as either an event timer or an
event counter, as selected by C/T2 in the special function register T2CON. Timer 2
has four operating modes: Capture, Auto-reload (up or down counting), Clock-out,
and Baud Rate Generator which are selected according to
(Table 20
Table 19:
Table 20:
Bit addressable; Reset value: 00H
RCLK+TCLK CP/RL2
0
0
0
1
X
Bit
Symbol
Fig 11. Timer/Counter 0 Mode 3 (two 8-bit counters).
INT0 Pin
TnGate
T0 pin
Osc/6
TR0
and
Timer 2 operating mode
T2CON - Timer/Counter 2 control register (address C8H) bit allocation
TF2
7
Table
0
1
0
X
X
Rev. 04 — 02 December 2004
21) and T2MOD
EXF2
Osc/2
6
TR1
C/T = 0
C/T = 1
TR2
1
1
1
1
0
RCLK
5
P89LV51RB2/RC2/RD2
(Table 22
TCLK
control
control
4
T2OE
0
0
1
0
X
8-bit microcontrollers with 80C51 core
and
EXEN2
(8-bits)
(8-bits)
TH0
TL0
Table
3
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
23).
Mode
16-BIT auto reload
16-bit capture
Programmable Clock-Out
Baud rate generator
off
overflow
overflow
Table 19
TR2
2
TF0
TF1
using T2CON
C/T2
1
002aaa522
interrupt
interrupt
CP/RL2
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