MCL908QY2CDTE Freescale Semiconductor, MCL908QY2CDTE Datasheet - Page 83
![IC MCU 8BIT 1.5K FLASH 16-TSSOP](/photos/12/26/122616/mcl908qy2cdte_sml.jpg)
MCL908QY2CDTE
Manufacturer Part Number
MCL908QY2CDTE
Description
IC MCU 8BIT 1.5K FLASH 16-TSSOP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MCL908QY2CDWE.pdf
(182 pages)
Specifications of MCL908QY2CDTE
Core Processor
HC08
Core Size
8-Bit
Speed
2MHz
Peripherals
LVD, POR, PWM
Number Of I /o
13
Program Memory Size
1.5KB (1.5K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 4x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
16-TSSOP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Connectivity
-
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9.7 Input/Output Registers
The following I/O registers control and monitor operation of the keyboard interrupt module:
9.7.1 Keyboard Status and Control Register
The keyboard status and control register (KBSCR):
Bits 7–4 — Not used
KEYF — Keyboard Flag Bit
ACKK — Keyboard Acknowledge Bit
IMASKK— Keyboard Interrupt Mask Bit
MODEK — Keyboard Triggering Sensitivity Bit
Freescale Semiconductor
•
•
•
•
•
•
These read-only bits always read as 0s.
This read-only bit is set when a keyboard interrupt is pending on port A or auto wakeup. Reset clears
the KEYF bit.
Writing a 1 to this write-only bit clears the keyboard interrupt request on port A and auto wakeup logic.
ACKK always reads as 0. Reset clears ACKK.
Writing a 1 to this read/write bit prevents the output of the keyboard interrupt mask from generating
interrupt requests on port A or auto wakeup. Reset clears the IMASKK bit.
This read/write bit controls the triggering sensitivity of the keyboard interrupt pins on port A and auto
wakeup. Reset clears MODEK.
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
Keyboard interrupt status and control register (KBSCR)
Keyboard interrupt enable register (KBIER)
Flags keyboard interrupt requests
Acknowledges keyboard interrupt requests
Masks keyboard interrupt requests
Controls keyboard interrupt triggering sensitivity
Address:
Reset:
Read:
Write:
Figure 9-3. Keyboard Status and Control Register (KBSCR)
$001A
Bit 7
0
0
= Unimplemented
MC68HLC908QY/QT Family Data Sheet, Rev. 3
6
0
0
5
0
0
4
0
0
KEYF
3
0
ACKK
2
0
0
IMASKK
1
0
Input/Output Registers
MODEK
Bit 0
0
83
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