MC908GR32AVFAE Freescale Semiconductor, MC908GR32AVFAE Datasheet - Page 115
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MC908GR32AVFAE
Manufacturer Part Number
MC908GR32AVFAE
Description
IC MCU 8BIT 32K FLASH 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908GR32ACFJE.pdf
(314 pages)
Specifications of MC908GR32AVFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
32KB (32K x 8)
Program Memory Type
FLASH
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 24x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 105°C
Package / Case
48-LQFP
Controller Family/series
HC08
No. Of I/o's
37
Ram Memory Size
1.5KB
Cpu Speed
8MHz
No. Of Timers
2
Embedded Interface Type
SCI, SPI
Rohs Compliant
Yes
Processor Series
HC08GR
Core
HC08
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
ESCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
53
Number Of Timers
8
Maximum Operating Temperature
+ 105 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, DEMO908GZ60E, M68CBL05CE, M68EML08GPGTE
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 24 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908GR32AVFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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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.
Freescale Semiconductor
$001A
$001B
$0448
Addr.
•
•
KBD0
KBD7
KBIP0
KBIP7
If the keyboard interrupt is edge-sensitive only, a falling (or rising) edge on a keyboard pin does not
latch an interrupt request if another keyboard pin is already asserted. To prevent losing an interrupt
request on one pin because another pin is still asserted, software can disable the latter pin while it
is asserted.
If the keyboard interrupt is edge and level sensitive, an interrupt request is present as long as any
keyboard interrupt pin is asserted and the pin is keyboard interrupt enabled.
Keyboard Status and Control
Keyboard Interrupt Polarity
Keyboard Interrupt Enable
Register Name
Register (INTKBSCR)
Register (INTKBIER)
Register (INTKBIPR)
1
0
1
0
VECTOR FETCH
S
S
INTERNAL BUS
DECODER
See page 118.
See page 119.
See page 119.
MC68HC908GR60A • MC68HC908GR48A • MC68HC908GR32A Data Sheet, Rev. 5
TO PULLUP/
PULLDOWN ENABLE
TO PULLUP/
PULLDOWN ENABLE
KBIE0
KBIE7
Reset:
Reset:
Reset:
Figure 9-2. Keyboard Module Block Diagram
Read:
Read:
Read:
Write:
Write:
Write:
RESET
ACKK
Figure 9-3. I/O Register Summary
KBIE7
KBIP7
Bit 7
0
0
0
0
= Unimplemented
KBIE6
KBIP6
6
0
0
0
0
MODEK
V
DD
KBIE5
KBIP5
5
0
0
0
0
D
CK
CLR
Q
KBIE4
KBIP4
4
0
0
0
0
KBIE3
KBIP3
KEYF
3
0
0
0
IMASKK
SYNCHRONIZER
ACKK
KBIE2
KBIP2
2
0
0
0
0
Functional Description
IMASKK
KBIE1
KBIP1
KEYF
1
0
0
0
KEYBOARD
INTERRUPT
REQUEST
MODEK
KBIE0
KBIP0
Bit 0
0
0
0
115
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