UPSD33XX Datasheet, PDF (76/231 Pages) STMicroelectronics – Fast 8032 MCU with Programmable Logic

uPSD33xx
Table 42. Timer/Counter 2 Operating Modes
Bits in T2CON SFR
Input Clock
Mode
RCLK
or
TCLK
CP/
RL2
Pin
TR2 EXEN2 ^T2X
Remarks
Timer,
Internal
Counter,
External
(Pin T2,
P1.0)
16-bit
0
0
1
Auto-
reload
0
0
1
0
1
x
reload [RCAP2H, RCAP2L] to [TH2,
TL2] upon overflow (up counting)
↓
reload [RCAP2H, RCAP2L] to [TH2,
TL2] at falling edge on pin T2X
f_OSC/12
MAX
f_OSC/24
0
1
1
0
x 16-bit Timer/Counter (up counting)
16-bit
Capture
0
1
1
1
↓
Capture [TH2, TL2] and store to
f_OSC/12
[RCAP2H, RCAP2L] at falling edge on
MAX
f_OSC/24
pin T2X
Baud Rate ¹
x
1
Generator ₁
x
1
0
1
x No overflow interrupt request (TF2)
f_OSC/2
–
↓ Extra Interrupt on pin T2X, sets TF2
Off
x
x
0
x
x Timer 2 stops
Note: ↓ = falling edge
–
–
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