s908gz60cfa Freescale Semiconductor, Inc, s908gz60cfa Datasheet - Page 121

• Manufacturer Part Number: s908gz60cfa
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

9.7.2 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
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.
KBIP7–KBIP0 — Keyboard Interrupt Polarity Bits
Freescale Semiconductor
Each of these read/write bits enables the corresponding keyboard interrupt pin to latch interrupt
requests. Reset clears the keyboard interrupt enable register.
Each of these read/write bits enables the polarity of the keyboard interrupt pin. Reset clears the
keyboard interrupt polarity register.
1 = PTAx pin enabled as keyboard interrupt pin
0 = PTAx pin not enabled as keyboard interrupt pin
1 = Keyboard polarity is rising edge and/or high level
0 = Keyboard polarity is falling edge and/or low level
Address: $001B
Address: $0448
Reset:
Reset:
Read:
Read:
Write:
Write:
MC68HC908GZ60 • MC68HC908GZ48 • MC68HC908GZ32 Data Sheet, Rev. 6
Figure 9-6. Keyboard Interrupt Polarity Register (INTKBIPR)
Figure 9-5. Keyboard Interrupt Enable Register (INTKBIER)
KBIE7
KBIP7
Bit 7
Bit 7
0
0
KBIE6
KBIP6
6
0
6
0
KBIE5
KBIP5
5
0
5
0
KBIE4
KBIP4
4
0
4
0
KBIE3
KBIP3
3
0
3
0
KBIE2
KBIP2
2
0
2
0
KBIE1
KBIP1
1
0
1
0
KBIE0
KBIP0
Bit 0
Bit 0
0
0
I/O Registers
121