MC908LD64IFUE Freescale Semiconductor, MC908LD64IFUE Datasheet - Page 126
MC908LD64IFUE
Manufacturer Part Number
MC908LD64IFUE
Description
IC MCU 8BIT FOR LCD 64-QFP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC908LD64IFUE.pdf
(362 pages)
Specifications of MC908LD64IFUE
Core Processor
HC08
Core Size
8-Bit
Speed
6MHz
Connectivity
I²C, USB
Peripherals
OSD, POR, PWM
Number Of I /o
39
Program Memory Size
60KB (60K x 8)
Program Memory Type
FLASH
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 6x8b
Oscillator Type
Internal
Operating Temperature
0°C ~ 85°C
Package / Case
64-QFP
Processor Series
HC08LD
Core
HC08
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
I2C, USB
Maximum Clock Frequency
6 MHz
Number Of Programmable I/os
39
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
FSICEBASE, M68CBL05CE
Minimum Operating Temperature
0 C
On-chip Adc
8 bit, 6 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MC908LD64IFUE
Manufacturer:
Freescale Semiconductor
Quantity:
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Part Number:
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System Integration Module (SIM)
9.6.1.1 Hardware Interrupts
Data Sheet
126
Interrupts are latched, and arbitration is performed in the SIM at the start
of interrupt processing. The arbitration result is a constant that the CPU
uses to determine which vector to fetch. Once an interrupt is latched by
the SIM, no other interrupt may take precedence, regardless of priority,
until the latched interrupt is serviced (or the I bit is cleared). (See
9-10. Interrupt
A hardware interrupt does not stop the current instruction. Processing of
a hardware interrupt begins after completion of the current instruction.
When the current instruction is complete, the SIM checks all pending
hardware interrupts. If interrupts are not masked (I bit clear in the
condition code register), and if the corresponding interrupt enable bit is
set, the SIM proceeds with interrupt processing; otherwise, the next
instruction is fetched and executed.
If more than one interrupt is pending at the end of an instruction
execution, the highest priority interrupt is serviced first.
demonstrates what happens when two interrupts are pending. If an
interrupt is pending upon exit from the original interrupt service routine,
the pending interrupt is serviced before the LDA instruction is executed.
System Integration Module (SIM)
INT1
INT2
Figure 9-11
Processing.)
PSHH
PULH
RTI
CLI
LDA
PSHH
PULH
RTI
#$FF
.
Interrupt Recognition Example
INT1 INTERRUPT SERVICE ROUTINE
INT2 INTERRUPT SERVICE ROUTINE
MC68HC908LD64
Freescale Semiconductor
BACKGROUND ROUTINE
Figure 9-11
—
Figure
Rev. 3.0
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