C509-L_97 Datasheet, PDF (144/290 Pages) Siemens Semiconductor Group – 8-Bit CMOS Microcontroller

On-Chip Peripheral Components
C509-L
Table 6-7
Compare Timer / Compare Timer 1 Related Mapped Special Function Registers of the CCU
(cont’d)
Address
F2H
F3H
F4H
F5H
F6H
F7H
DEH
DFH
Symbol
CML6
CC1L6
CMH6
CC1H6
CML7
CC1L7
CMH7
CC1H7
CMEN
CC1EN
CMSEL
CAFR
CTRELL
CT1RELL
CTRELH
CT1RELH
Description
Compare Register 6, Low Byte
Compare/Capture 1 Register 6, Low Byte
Compare Register 6, High Byte
Compare/Capture 1 Register 6, High Byte
Compare Register 7, Low Byte
Compare/Capture 1 Register 7, Low Byte
Compare Register 7, High Byte
Compare/Capture 1 Register 7, High Byte
Compare Enable Register
Compare/Capture Enable Register
Compare Input Select
Capture 1, Falling/Rising Edge Register
Compare Timer Reload Register, Low Byte
Compare Timer 1 Reload Register, Low Byte
Compare Timer Reload Register, High Byte
Compare Timer 1 Reload Register, High Byte
Access by
RMAP =
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
The SFR CT1CON contains the control bits for the input clock selection and the compare timer 1
overflow flag CT1F. CT1CON and the reload registers (CT1RELL, CT1RELH) are described in
detail in section 6.3.2.
The SFR CC1EN contains the enable bits for the compare/capture registers CC10 to CC17. When
set, compare/capture function is enabled and connected to the port 9 pins. AFR CC1EN is a
mapped register.and can only be accessed when bit RMAP in SFR SYSCON is set.
Special Function Register CC1EN (Mapped Address F6H)
MSB
Bit No. 7
6
5
4
3
2
F6H
.7
.6
.5
.4
.3
.2
Reset Value : 00H
LSB
1
0
.1
.0 CC1EN
Bit
CC1EN.7 - 0
Function
Compare timer 1 capture/compare register enable bits
If CC1EN.x is set, the compare/capture function for P9.x is enabled and the port
line is connected with the corresponding compare/capture register CC(10+x).
If CC1EN.x is cleared, the port pin P9.x operates as standard digital I/O.
Semiconductor Group
6-66
1997-10-01