11.1.2 Mode 1: 16-Bit Timer/Counter
Mode 1 is the same as Mode 0, except that the Timer register uses all 16 bits. Refer to Figure 11-2. In this mode,
THx and TLx are cascaded; there is no prescaler.
Figure 11-2. Timer 1 in Mode 1: 16-Bit Timer/Counter
Fosc
12
"0"
"1"
"0"
"1"
TL1
(8 Bits)
TH1
(8 Bits)
Overflow
TF1
T1X12
T1 Pin
Timer 1
Interrupt
C/-T
TR1
GATE
/INT1 pin
* Fosc is the system clock.
11.1.3 Mode 2: 8-Bit Auto-Reload
Mode 2 configures the Timer register as an 8-bit Counter (TLx) with automatic reload, as shown in Figure 11-3.
Overflow from TLx not only sets TFx, but also reloads TLx with the contents of THx, which is preset by software.
The reload leaves THx unchanged.
Figure 11-3. Timer 1 in Mode 2: 8-Bit Auto-Reload
Fosc
12
"0"
"1"
"0"
"1"
TL1
(8 Bits)
Overflow
TF1
T1X12
T1 Pin
Timer 1
Interrupt
Load
C/-T
TR1
GATE
/INT1 pin
* Fosc is the system clock.
TH1
(8 Bits)
MEGAWIN
MPC82G516A Data Sheet
42
MEGAWIN [ MEGAWIN TECHNOLOGY CO., LTD ]
