MC908GR16VFAE Freescale Semiconductor, MC908GR16VFAE Datasheet - Page 105
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MC908GR16VFAE
Manufacturer Part Number
MC908GR16VFAE
Description
IC MCU 16K FLASH 8MHZ 48-LQFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Specifications of MC908GR16VFAE
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Connectivity
LIN, SCI, SPI
Peripherals
LVD, POR, PWM
Number Of I /o
37
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Data Converters
A/D 8x10b
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
1KB
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
512 B
Interface Type
SCI, SPI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
33
Number Of Timers
4
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
8 bit, 8 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:
MC908GR16VFAE
Manufacturer:
Freescale Semiconductor
Quantity:
10 000
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Chapter 9
Keyboard Interrupt Module (KBI)
9.1 Introduction
The keyboard interrupt module (KBI) provides eight independently maskable external interrupts which are
accessible via PTA0–PTA7. When a port pin is enabled for keyboard interrupt function, an internal pullup
device is also enabled on the pin.
9.2 Features
Features include:
9.3 Functional Description
Writing to the KBIE7–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 also enables its
internal pullup device. A 0 applied to an enabled keyboard interrupt pin latches a keyboard interrupt
request.
A keyboard interrupt is latched when one or more keyboard pins goes low after all were high. The MODEK
bit in the keyboard status and control register controls the triggering mode of the keyboard interrupt.
Freescale Semiconductor
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Eight keyboard interrupt pins with separate keyboard interrupt enable bits and one keyboard
interrupt mask
Hysteresis buffers
Programmable edge-only or edge- and level- interrupt sensitivity
Exit from low-power modes
I/O (input/output) port bit(s) software configurable with pullup device(s) if configured as input port
bit(s)
If the keyboard interrupt is edge-sensitive only, a falling edge on a keyboard pin does not latch an
interrupt request if another keyboard pin is already low. To prevent losing an interrupt request on
one pin because another pin is still low, software can disable the latter pin while it is low.
If the keyboard interrupt is falling edge- and low-level sensitive, an interrupt request is present as
long as any keyboard interrupt pin is low and the pin is keyboard interrupt enabled.
MC68HC908GR16 Data Sheet, Rev. 4.0
105
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