UPSD3233 STMicroelectronics, UPSD3233 Datasheet - Page 59
UPSD3233
Manufacturer Part Number
UPSD3233
Description
Flash Programmable System Devices with 8032 Microcontroller Core
Manufacturer
STMicroelectronics
Datasheet
1.UPSD3233.pdf
(175 pages)
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Table 42. Timer/Counter2 Operating Modes
Note:
Figure 25. Timer 2 in Capture Mode
Baud Rate
Generator
Capture
T2EX pin
reload
Mode
16-bit
16-bit
Auto-
Off
T2 pin
= falling edge
f
OSC
RxCLK
TxCLK
Transition
or
Detector
0
0
0
0
0
0
1
1
x
÷ 12
T2CON
RL2
CP/
0
0
0
0
1
1
x
x
x
EXEN2
C/T2 = 0
C/T2 = 1
TR2
TR2
1
1
1
1
1
1
1
1
0
T2MOD
DECN
Control
Control
UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
0
0
1
1
x
x
x
x
x
Capture
T2CON
EXEN
0
1
0
1
0
1
x
x
x
RCAP2L RCAP2H
(8 bits)
TL2
T2EX
P1.1
x
0
1
x
x
x
(8 bits)
TH2
reload upon overflow
reload trigger (falling
edge)
Down counting
Up counting
16-bit Timer/Counter
(only up counting)
Capture (TH1,TL2)
(RCAP2H,RCAP2L)
No overflow interrupt
request (TF2)
Extra External Interrupt
(Timer 2)
Timer 2 stops
Remarks
EXP2
TF2
Internal
f
f
f
OSC
OSC
OSC
—
Input Clock
/12
/12
/12
AI06625
(P1.0/T2)
External
Timer 2
Interrupt
f
f
f
OSC
OSC
OSC
MAX
MAX
MAX
—
59/175
/24
/24
/24