C508_01 Datasheet, PDF (82/267 Pages) Infineon Technologies AG – 8-Bit CMOS Microcontroller

C508
On-Chip Peripheral Components
6.2.1.1 Timer/Counter 0 and 1 Registers
Seven special function registers control the operation of timer/counter 0 and 1:
– TL0/TH0 and TL1/TH1 – counter registers, low and high part
– TCON and IEN0 – control and interrupt enable
– TMOD – mode select
Special Function Register TL0 (Address 8A_H)
Special Function Register TH0 (Address 8C_H)
Special Function Register TL1 (Address 8B_H)
Special Function Register TH1 (Address 8D_H)
Reset Value: 00_H
Reset Value: 00_H
Reset Value: 00_H
Reset Value: 00_H
Bit No. MSB
LSB
7
6
5
4
3
2
1
0
8A_H
.7
.6
.5
.4
.3
.2
.1
.0 TL0
8C_H
.7
.6
.5
.4
.3
.2
.1
.0 TH0
8B_H
.7
.6
.5
.4
.3
.2
.1
.0 TL1
8D_H
.7
.6
.5
.4
.3
.2
.1
.0 TH1
Bit
TLx.7-0
x = 0-1
Function
Timer/counter 0/1 low register
Operating Mode Description
0
“TLx” holds the 5-bit prescaler value.
1
“TLx” holds the lower 8-bit part of the 16-bit timer/counter value.
2
“TLx” holds the 8-bit timer/counter value.
3
TL0 holds the 8-bit timer/counter value; TL1 is not used.
THx.7-0
x = 0-1
Timer/counter 0/1 high register
Operating Mode Description
0
“THx” holds the 8-bit timer/counter value.
1
“THx” holds the higher 8-bit part of the 16-bit timer/counter value.
2
“THx” holds the 8-bit reload value.
3
TH0 holds the 8-bit timer value; TH1 is not used.
User’s Manual
6-17
2001-05