MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 168
MC68HRC908JK3CP
Manufacturer Part Number
MC68HRC908JK3CP
Description
IC MCU FLASH 8B 8MHZ RC 4K 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
Specifications of MC68HRC908JK3CP
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HRC908JK3CP
Manufacturer:
FREECAL
Quantity:
20 000
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Keyboard Interrupt Module (KBI)
14.4 Functional Description
Technical Data
166
KBI0
KBI6
Addr.
TO PULLUP ENABLE
TO PULLUP ENABLE
$001A
$001B
Keyboard Interrupt Enable
KBIE0
KBIE6
Register Name
and Control Register
Register (KBIER)
Keyboard Status
.
.
.
(KBSCR)
Figure 14-2. Keyboard Interrupt Block Diagram
Writing to the KBIE6–KBIE0 bits in the keyboard interrupt enable register
independently enables or disables each port A pin as a keyboard
interrupt pin. Enabling a keyboard interrupt pin in port A also enables its
internal pull-up device irrespective of PTAPUEx bits in the port A input
pull-up enable register (see 12.4.2). A logic 0 applied to an enabled
keyboard interrupt pin latches a keyboard interrupt request.
Reset:
Reset:
Read:
Write:
Read:
Write:
Figure 14-1. KBI I/O Register Summary
Bit 7
0
0
0
0
Keyboard Interrupt Module (KBI)
MODEK
V
= Unimplemented
DD
KBIE6
6
0
0
0
D
CK
CLR
Q
KBIE5
5
0
0
0
INTERRUPT FF
KEYBOARD
KBIE4
4
0
0
0
RESET
ACKK
KBIE3
KEYF
3
0
0
VECTOR FETCH
INTERNAL BUS
MC68H(R)C908JL3
DECODER
IMASKK
ACKK
KBIE2
SYNCHRONIZER
Freescale Semiconductor
2
0
0
0
IMASKK
KBIE1
1
0
0
KEYF
—
MODEK
Rev. 1.1
KBIE0
Bit 0
Keyboard
Interrupt
Request
0
0
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