GMS90 Hynix Semiconductor, GMS90 Datasheet - Page 24

• Manufacturer Part Number: GMS90
• Description: 8-BIT SINGLE-CHIP MICROCONTROLLERS
• Manufacturer: Hynix Semiconductor

TIMER 2
Timer 2 is a 16-bit timer/Counter with an up/down count feature. It can operate either as timer or as an event
counter which is selected by bit C/T2 (T2CON.1). It has three operating modes as shown in Table 5.
Table 5. Timer/Counter 2 Operating Modes
Note:
20
16-bit Auto-
Reload
16-bit
Capture
Baud Rate
Generator
Off
Mode
=
falling edge
RCLK or
TCLK
0
0
0
0
0
0
1
1
X
CP/RL2
T2CON
X
X
X
0
0
0
0
1
1
TR2
1
1
1
1
1
1
1
1
0
T2MO
DCEN EXEN2
X
X
X
X
X
D
0
0
1
1
T2CON
X
X
X
0
1
0
1
0
1
T2EX
P1.1/
X
X
X
X
0
1
Timer 2 stops
reload upon over-
flow
reload trigger (fall-
ing edge)
Down counting
Up counting
16 bit Timer/ Coun-
ter (only up-count-
ing)
capture TH2,TL2
no overflow
interrupt request
(TF2)
extra external inter-
rupt ("Timer 2")
RC2H,RC2L
Remarks
f
f
f
OSC
OSC
OSC
internal
Dec. 1998 Ver 3.0
-
Input Clock
12
12
12
GMS90 Series
f
f
f
OSC
OSC
OSC
(P1.0/T2)
external
Max.
Max.
Max.
-
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