C505_9708 SIEMENS [Siemens Semiconductor Group], C505_9708 Datasheet - Page 83

• Manufacturer Part Number: C505_9708
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

6.2.1.4
Mode 2 configures the timer register as an 8-bit counter (TL0) with automatic reload, as shown in
figure 6-11. Overflow from TL0 not only sets TF0, but also reloads TL0 with the contents of TH0,
which is preset by software. The reload leaves TH0 unchanged.
Figure 6-11
Timer/Counter 0,1, Mode 2: 8-Bit Timer/Counter with Auto-Reload
Semiconductor Group
P3.4/T0
Gate
P3.2/INT0
Mode 2
= 1
OSC
÷ 6
<
_
1
TR0
C/T = 0
C/T = 1
&
6-21
Control
On-Chip Peripheral Components
(8
(8 Bits)
TH0
TL0
Bits)
Reload
TF0
C505 / C505C
Interrupt
MCS02728
1997-08-01