MC9S08QG8CDTER Freescale, MC9S08QG8CDTER Datasheet - Page 178
MC9S08QG8CDTER
Manufacturer Part Number
MC9S08QG8CDTER
Description
Manufacturer
Freescale
Datasheet
1.MC9S08QG8CDTER.pdf
(314 pages)
Specifications of MC9S08QG8CDTER
Cpu Family
HCS08
Device Core Size
8b
Frequency (max)
20MHz
Interface Type
I2C/SCI/SPI
Total Internal Ram Size
512Byte
# I/os (max)
12
Number Of Timers - General Purpose
1
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
3.6V
Operating Supply Voltage (min)
1.8V
On-chip Adc
8-chx10-bit
Instruction Set Architecture
CISC
Operating Temp Range
-40C to 85C
Operating Temperature Classification
Industrial
Mounting
Surface Mount
Pin Count
16
Package Type
TSSOP
Program Memory Type
Flash
Program Memory Size
8KB
Lead Free Status / RoHS Status
Compliant
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Keyboard Interrupts (S08KBIV2)
12.2
The KBI input pins can be used to detect either falling edges, or both falling edge and low level interrupt
requests. The KBI input pins can also be used to detect either rising edges, or both rising edge and high
level interrupt requests.
The signal properties of KBI are shown in
12.3
The KBI includes three registers:
Refer to the direct-page register summary in the
all KBI registers. This section refers to registers and control bits only by their names.
Some MCUs may have more than one KBI, so register names include placeholder characters to identify
which KBI is being referenced.
12.3.1
KBISC contains the status flag and control bits, which are used to configure the KBI.
176
KBIP0
KBIPn
KBEDG0
KBEDGn
•
•
•
An 8-bit pin status and control register.
An 8-bit pin enable register.
An 8-bit edge select register.
External Signal Description
Register Definition
0
0
1
1
S
S
KBI Status and Control Register (KBISC)
KBIPE0
KBIPEn
Signal
KBIPn
MC9S08QG8 and MC9S08QG4 Data Sheet, Rev. 5
Figure 12-2. KBI Block Diagram
Keyboard interrupt pins
Table 12-1. Signal Properties
KBMOD
Table
V
DD
Memory
12-1.
D
CK
Function
CLR
Q
chapter for the absolute address assignments for
INTERRUPT FF
KEYBOARD
KBACK
RESET
STOP
I/O
SYNCHRONIZER
STOP BYPASS
I
BUSCLK
KBIE
Freescale Semiconductor
KBF
KBI
INTERRU
PT
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