GMS81C2112 Datasheet, PDF (58/107 Pages) Hynix Semiconductor – HYNIX SEMICONDUCTOR 8-BIT SINGLE-CHIP MICROCONTROLLERS

GMS81C2112/GMS81C2120
12.5 16-bit Capture Mode
16-bit capture mode is the same as 8-bit capture, except
that the Timer register is being run will 16 bits.
The clock source of the Timer 0 is selected either internal
or external clock by bit T0CK2, T0CK1 and T0CK0.
In 16-bit mode, the bits T1CK1,T1CK0 and 16BIT of TM1
should be set to "1" respectively.
EC0 PIN
XIN PIN
INT0 PIN
TM0
7
6
5
4
3
2
1
0
-
- CAP0 T0CK2 BT0TCKL1T0CK0 T0CN T0ST
-
-
1
X
X
XX
X
ADDRESS: 0D0_H
INITIAL VALUE: --000000_B
X means don’t care
TM1
7
6
5
4
3
2
1
0
POL 16BIT PWM1E CAP1 BT1TCKL1T1CK0 T1CN T1ST
X1
0
X
1
1
X
X
ADDRESS: 0D2_H
INITIAL VALUE: 00_H
Edge
Detector
T0CK[2:0]
111
÷
2 ₀₀₀
÷
4
001
÷
8 ₀₁₀
÷
 ₀₁₁
÷
 ₁₀₀
÷
512 ₁₀₁
÷
2048 ₁₁₀
MUX
T0CN
IEDS[1:0]
“01”
“10”
“11”
X means don’t care
T0ST
0: Stop
1: Clear and start
TDR1 + TDR0
(16-bit)
clear
Capture
CDR1 + CDR0
(16-bit)
Higher byte Lower byte
CAPTURE DATA
INT0IF
INT0
INTERRUPT
Figure 12-11 16-bit Capture Mode
52
JUNE. 2001 Ver 1.00