Philips Semiconductors
User’s Manual - Preliminary -
P89LPC901/902/903
KEYPAD INTERRUPT (KBI)
2003 Dec 8
81
Figure 11-6: Keypad Interrupt Mask Register (KBM)) - P89LPC902
Figure 11-7: Keypad Interrupt Mask Register (KBM)) - P89LPC903
KBMASK
Address: 86h
Not bit addressable
Reset Source(s): Any reset
Reset Value: 00000000B
BIT
SYMBOL
FUNCTION
KBMASK.7
-
Reserved.
KBMASK.6
-
When set, enables P0.6 as a cause of a Keypad Interrupt.
KBMASK.5
-
When set, enables P0.5 as a cause of a Keypad Interrupt.
KBMASK.4
-
When set, enables P0.4 as a cause of a Keypad Interrupt.
KBMASK.3
-
Reserved.
KBMASK.2
-
When set, enables P0.2 as a cause of a Keypad Interrupt.
KBMASK.1
-
Reserved.
KBMASK.0
-
When set, enables P0.0 as a cause of a Keypad Interrupt.
Note: the Keypad Interrupt must be enabled in order for the settings of the KBMASK register to be effective.
Bit positions KBMASK.7, KBMASK.3, and KBMASK.1 should always be written as a ’0’.
7
6
5
4
3
2
1
0
-
KBMASK.6 KBMASK.5 KBMASK.4
-
KBMASK.2
-
KBMASK.0
KBMASK
Address: 86h
Not bit addressable
Reset Source(s): Any reset
Reset Value: 00000000B
BIT
SYMBOL
FUNCTION
KBMASK.7:6
-
Reserved.
KBMASK.5
-
When set, enables P0.5 as a cause of a Keypad Interrupt.
KBMASK.4
-
When set, enables P0.4 as a cause of a Keypad Interrupt.
KBMASK.3
-
Reserved.
KBMASK.2
-
When set, enables P0.2 as a cause of a Keypad Interrupt.
KBMASK.1:0
-
Reserved.
Note: the Keypad Interrupt must be enabled in order for the settings of the KBMASK register to be effective.
Bit positions KBMASK.7, KBMASK.6, KBMASK.3, KBMASK.1, and KBMASK.0 should always be written as a ’0’.
7
6
5
4
3
2
1
0
-
-
KBMASK.5 KBMASK.4
-
KBMASK.2
-
-
Содержание P89LPC901
Страница 26: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 GENERAL DESCRIPTION 2003 Dec 8 26 ...
Страница 34: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 CLOCKS 2003 Dec 8 34 ...
Страница 44: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 I O PORTS 2003 Dec 8 44 ...
Страница 50: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 TIMERS 0 AND 1 2003 Dec 8 50 ...
Страница 60: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 POWER MONITORING FUNCTIONS 2003 Dec 8 60 ...
Страница 72: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 UART P89LPC903 2003 Dec 8 72 ...
Страница 82: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 KEYPAD INTERRUPT KBI 2003 Dec 8 82 ...
Страница 90: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 WATCHDOG TIMER 2003 Dec 8 90 ...
Страница 108: ...Philips Semiconductors User s Manual Preliminary P89LPC901 902 903 REVISION HISTORY 2003 Dec 8 108 ...