
Keyboard Interrupt Module (KBI)
I/O Registers
MC68HC908JB8MC68HC08JB8MC68HC08JT8 — Rev. 2.3
Technical Data
Freescale Semiconductor
Keyboard Interrupt Module (KBI)
235
14.9.2 Keyboard Interrupt Enable Register
The keyboard interrupt enable register enables or disables each port A
pin to operate as a keyboard interrupt pin.
KBIE7–KBIE0 — Keyboard Interrupt Enable Bits
Each of these read/write bits enables the corresponding keyboard
interrupt pin to latch interrupt requests. Reset clears the keyboard
interrupt enable register.
1 = PTAx pin enabled as keyboard interrupt pin
0 = PTAx pin not enabled as keyboard interrupt pin
Address: $0017
Bit 7
654321
Bit 0
Read:
KBIE7
KBIE6
KBIE5
KBIE4
KBIE3
KBIE2
KBIE1
KBIE0
Write:
Reset:
00000000
Figure 14-3. Keyboard Interrupt Enable Register (KBIER)