MC68HRC908JK3CP Freescale Semiconductor, MC68HRC908JK3CP Datasheet - Page 163
MC68HRC908JK3CP
Manufacturer Part Number
MC68HRC908JK3CP
Description
IC MCU FLASH 8B 8MHZ RC 4K 20DIP
Manufacturer
Freescale Semiconductor
Series
HC08r
Datasheet
1.MC68HC908JK1CDW.pdf
(212 pages)
Specifications of MC68HRC908JK3CP
Core Processor
HC08
Core Size
8-Bit
Speed
8MHz
Peripherals
LED, LVD, POR, PWM
Number Of I /o
15
Program Memory Size
4KB (4K x 8)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.3 V
Data Converters
A/D 12x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
MC68HRC908JK3CP
Manufacturer:
FREECAL
Quantity:
20 000
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13.4.1 IRQ1 Pin
MC68H(R)C908JL3
Freescale Semiconductor
Addr.
$001D
IRQPUD
IRQ Status and Control
IRQ1
Register Name
DECODER
NOTE:
VECTOR
RESET
FETCH
ACK1
V
DD
I
PULLUP
DEVICE
NTERNAL
—
(INTSCR)
Register
Rev. 1.1
The interrupt mask (I) in the condition code register (CCR) masks all
interrupt requests, including external interrupt
Exception
A logic zero on the IRQ1 pin can latch an interrupt request into the IRQ1
latch. A vector fetch, software clear, or reset clears the IRQ1 latch.
If the MODE1 bit is set, the IRQ1 pin is both falling-edge-sensitive and
low-level-sensitive. With MODE1 set, both of the following actions must
occur to clear IRQ1:
Reset:
Read:
Write:
Figure 13-2. IRQ I/O Register Summary
V
MODE1
DD
D
CK
Bit 7
IRQ1
CLR
0
0
FF
Control.)
Q
External Interrupt (IRQ)
Figure 13-1. IRQ Module Block Diagram
= Unimplemented
6
0
0
5
0
0
IMASK1
SYNCHRO-
VOLTAGE
DETECT
NIZER
4
0
0
HIGH
IRQF1
3
0
requests.(See 7.6
ACK1
IRQF1
2
0
0
External Interrupt (IRQ)
IMASK1
1
0
Technical Data
TO CPU FOR
BIL/BIH
INSTRUCTIONS
IRQ1
INTERRUPT
REQUEST
TO MODE
SELECT
LOGIC
MODE1
Bit 0
0
161
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