C509-L_97 SIEMENS [Siemens Semiconductor Group], C509-L_97 Datasheet - Page 151

• Manufacturer Part Number: C509-L_97
• Description: 8-Bit CMOS Microcontroller
• Manufacturer: SIEMENS [Siemens Semiconductor Group]

6.3.6.2
This section summarizes all CCU related interrupt enable control bits. The interrupt enable bits for
the two compare timers and the compare match and capture interrupt capture are located in the
three SFRs IEN2, IEN3, and EICC1. Note : EICC1 is a mapped SFR (by bit PDIR):
Special Function Register IEN2 (Address 9A H )
Special Function Register IEN3 (Address BE H )
Special Function Register EICC1 (Mapped Address BF H )
Bit
ECR
ECS
ECT
ECMP
ECT1
ECC1
EICC17 -
EICC10
Semiconductor Group
Bit No.
BE H
BF H
9A H
Interrupt Enable Bits of the Compare/Capture Unit
Function
COMCLR register compare match interrupt enable
If ECR = 0, the COMCLR compare match interrupt is disabled.
COMSET register compare match interrupt enable
If ECS = 0, the COMSET compare match interrupt is disabled.
Enable compare timer interrupt
If ECT = 0, the compare timer overflow interrupt is disabled.
CM0-7 register compare match interrupt
If ECMP = 0, the CM0-7 compare match interrupt is disabled.
Compare timer 1 overflow interrupt enable
If ECT1 = 0, the interrupt at compare timer 1 overflow is disabled.
Compare timer 1, general capture/compare interrupt enable
This bit enables the interrupt on an capture/compare event in the capture/compare
registers CC10 - CC17. Additionally, the SFR EICC1 must be programmed to
enable the interrupt request. With ECC1=0, the general capture/compare timer 1
interrupt is disabled.
Compare timer 1, specific capture/compare interrupt enable
This bit enables the interrupt on an capture/compare event in the capture/compare
registers CC10 - CC17. When EICC1x=0, the interrupt request flag ICC1x has no
effect on the interrupt unit. EICC17 refers to CC17 etc.
The shaded bits are not used for CCU interrupt control.
EICC17 EICC16 EICC15 EICC14
MSB
7
–
7
–
7
6
6
6
–
–
ECR
5
5
5
–
ECS
4
4
4
–
6-73
EICC13 EICC12 EICC11 EICC10
ECT1
ECT
3
3
3
On-Chip Peripheral Components
ECMP
ECC1
2
2
2
Reset Value : XXXX00XX B
1
1
–
1
–
Reset Value : XX0000X0 B
LSB
ES1
0
Reset Value : FF H
0
0
–
EICC1
IEN2
IEN3
1997-10-01
C509-L