C509-L_97 Datasheet, PDF (119/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C509-L
The reload register of the two compare timers are located at the same SFR addresses.
Special Function Register CTRELL (Address DEH)
Special Function Register CTRELH (Address DFH)
Special Function Register CT1RELL (Mapped Address DEH)
Special Function Register CT1RELH (Mapped Address DFH)
MSB
Bit No. 7
6
5
4
3
2
1
DEH
.7
.6
.5
.4
.3
.2
.1
Reset Value : 00H
Reset Value : 00H
Reset Value : 00H
Reset Value : 00H
LSB
0
.0 CTRELL
DFH
.7
.6
.5
.4
.3
.2
.1
.0 CTRELH
DEH
.7
.6
.5
.4
.3
.2
.1
.0 CT1RELL
RMAP=1
DFH
.7
RMAP=1
.6
.5
.4
.3
.2
.1
.0 CT1RELH
Bit
CTRELL.7 - 0
CTRELH.7 - 0
CT1RELL.7 - 0
CT1RELH.7 - 0
Function
Compare timer reload value low part
The CTRELL register holds the lower 8 bits of the 16-bit reload value for
the compare timer.
Compare timer reload value high part
The CTRELH register holds the upper 8 bits of the 16-bit reload value for
the compare timer.
Compare timer 1 reload value low part
The CT1RELL register holds the lower 8 bits of the 16-bit reload value
for the compare timer 1.
Compare timer 1 reload value high part
The CT1RELH register holds the upper 8 bits of the 16-bit reload value
for the compare timer 1.
Semiconductor Group
6-41
1997-10-01