MC68HC908JL8CSPE Freescale Semiconductor, MC68HC908JL8CSPE Datasheet - Page 170

• Manufacturer Part Number: MC68HC908JL8CSPE
• Description: IC MCU 8K FLASH 8MHZ 32-DIP
• Manufacturer: Freescale Semiconductor
• Series: HC08r

Specifications of MC68HC908JL8CSPE

• Core Processor: HC08
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SCI
• Peripherals: LED, LVD, POR, PWM
• Number Of I /o: 26
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 13x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-SDIP (0.400", 10.16mm)
• Controller Family/series: HC08
• No. Of I/o's: 26
• Ram Memory Size: 256Byte
• Cpu Speed: 8MHz
• No. Of Timers: 2
• Embedded Interface Type: I2C, SCI, SPI
• Rohs Compliant: Yes
• Processor Series: HC08JL
• Core: HC08
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SCI
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 26
• Number Of Timers: 4
• Operating Supply Voltage: 0 V to 5 V
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• Development Tools By Supplier: FSICEBASE, DEMO908JL16E, M68CBL05CE
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 13 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

Keyboard Interrupt Module (KBI)
KEYF — Keyboard Flag Bit
ACKK — Keyboard Acknowledge Bit
IMASKK— Keyboard Interrupt Mask Bit
MODEK — Keyboard Triggering Sensitivity Bit
13.5.2 Keyboard Interrupt Enable Register
The port-A keyboard interrupt enable register enables or disables each port-A pin to operate as a
keyboard interrupt pin
KBIE7–KBIE0 — Port-A Keyboard Interrupt Enable Bits
170
This read-only bit is set when a keyboard interrupt is pending on port A. Reset clears the KEYF bit.
Writing a logic 1 to this write-only bit clears the keyboard interrupt request on port A. ACKK always
reads as logic 0. Reset clears ACKK.
Writing a logic 1 to this read/write bit prevents the output of the keyboard interrupt mask from
generating interrupt requests on port A. Reset clears the IMASKK bit.
This read/write bit controls the triggering sensitivity of the keyboard interrupt pins on port A. Reset
clears MODEK.
Each of these read/write bits enables the corresponding keyboard interrupt pin on port-A to latch
interrupt requests. Reset clears the keyboard interrupt enable register.
1 = Keyboard interrupt pending
0 = No keyboard interrupt pending
1 = Keyboard interrupt requests masked
0 = Keyboard interrupt requests not masked
1 = Keyboard interrupt requests on falling edges and low levels
0 = Keyboard interrupt requests on falling edges only
1 = KBIx pin enabled as keyboard interrupt pin
0 = KBIx pin not enabled as keyboard interrupt pin
Address: $001A
Address:
Reset:
Reset:
Read:
Read:
Write:
Write:
MC68HC908JL8/JK8 • MC68HC08JL8/JK8 • MC68HC908KL8 Data Sheet, Rev. 3.1
Figure 13-3. Keyboard Status and Control Register (KBSCR)
Figure 13-4. Keyboard Interrupt Enable Register (KBIER)
$001B
KBIE7
Bit 7
Bit 7
0
0
0
= Unimplemented
KBIE6
6
0
0
6
0
KBIE5
5
0
0
5
0
KBIE4
4
0
0
4
0
KBIE3
KEYF
3
0
3
0
KBIE2
ACKK
2
0
0
2
0
IMASKK
KBIE1
1
0
1
0
Freescale Semiconductor
MODEK
KBIE0
Bit 0
Bit 0
0
0