MC68HC08GZ32 Datasheet, PDF (101/320 Pages) Freescale Semiconductor, Inc – Microcontrollers

I/O Registers
9.7.3 Keyboard Interrupt Polarity Register
The KBIP7–KBIP0 bits determine the polarity of the keyboard pin detection. These bits along with the
MODEK bit determine whether a logic level (0 or 1) and/or a falling (or rising) edge is being detected. The
KBIPx bits also select the pullup resistor (KBIPx = 0) or pulldown resistor (KBIPx = 1) for each enabled
keyboard interrupt pin.
Address: $0448
Bit 7
6
5
4
3
2
1
Bit 0
Read:
KBIP7
Write:
KBIP6
KBIP5
KBIP4
KBIP3
KBIP2
KBIP1
KBIP0
Reset: 0
0
0
0
0
0
0
0
Figure 9-6. Keyboard Interrupt Polarity Register (INTKBIPR)
KBIP7–KBIP0 — Keyboard Interrupt Polarity Bits
Each of these read/write bits enables the polarity of the keyboard interrupt pin. Reset clears the
keyboard interrupt polarity register.
1 = Keyboard polarity is rising edge and/or high level
0 = Keyboard polarity is falling edge and/or low level
MC68HC08GZ32 Data Sheet, Rev. 3
Freescale Semiconductor
101