MC68HC908QB8 Datasheet, PDF (88/236 Pages) Freescale Semiconductor, Inc – To provide the most up-to-date information, the revision of our documents

Keyboard Interrupt Module (KBI)
9.8.2 Keyboard Interrupt Enable Register (KBIER)
KBIER enables or disables each keyboard interrupt pin.
Read:
Write:
Reset:
Bit 7
6
5
4
3
2
1
Bit 0
0
AWUIE KBIE5 KBIE4 KBIE3 KBIE2 KBIE1 KBIE0
0
0
0
0
0
0
0
0
= Unimplemented
Figure 9-4. Keyboard Interrupt Enable Register (KBIER)
KBIE5–KBIE0 — Keyboard Interrupt Enable Bits
Each of these read/write bits enables the corresponding keyboard interrupt pin to latch KBI interrupt
requests.
1 = KBIx pin enabled as keyboard interrupt pin
0 = KBIx pin not enabled as keyboard interrupt pin
NOTE
AWUIE bit is not used in conjunction with the keyboard interrupt feature. To
see a description of this bit, see Chapter 4 Auto Wakeup Module (AWU)
9.8.3 Keyboard Interrupt Polarity Register (KBIPR)
KBIPR determines the polarity of the enabled keyboard interrupt pin and enables the appropriate pullup
or pulldown device.
Read:
Write:
Reset:
Bit 7
6
5
4
3
2
1
Bit 0
0
0
KBIP5 KBIP4 KBIP3 KBIP2 KBIP1 KBIP0
0
0
0
0
0
0
0
0
= Unimplemented
Figure 9-5. Keyboard Interrupt Polarity Register (KBIPR)
KBIP5–KBIP0 — Keyboard Interrupt Polarity Bits
Each of these read/write bits enables the polarity of the keyboard interrupt detection.
1 = Keyboard polarity is high level and/or rising edge
0 = Keyboard polarity is low level and/or falling edge
MC68HC908QB8 Data Sheet, Rev. 1
88
Freescale Semiconductor