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68HC05CL16 数据表(PDF) 39 Page - Motorola, Inc

部件名 68HC05CL16
功能描述  SPECIFICATION (General Release)
PDF  145 Pages
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制造商  MOTOROLA [Motorola, Inc]
网页  http://www.freescale.com
标志 MOTOROLA - Motorola, Inc

68HC05CL16 数据表(HTML) 39 Page - Motorola, Inc

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June 11, 1997
GENERAL RELEASE SPECIFICATION
MC68HC05CL48
INTERRUPTS
MOTOROLA
REV 2.0
4-7
To prevent unwanted interrupts generated on KBI[3:7] pins. A logic ‘1’ should be
written to these pins before setting their corresponding interrupt enable bits.
Figure 4-3. Keyboard Interrupt Circuitry
4.3.2.3
External Interrupt Control Register (EXICR $001D)
KBE[7:3]
1 =
Enable Keyboard interrupt on PTA[7:3] respectively.
0 =
Disable Keyboard interrupt on PTA[7:3] respectively.
IRQE[2:0]
1 =
Enable IRQ interrupt on PTA[2:0] respectively.
0 =
Disable IRQ interrupt PTA[2:0] respectively.
76543210
EXICR
$001D
READ
KBE7
KBE6
KBE5
KBE4
KBE3
IRQ2E
IRQ1E
IRQ0E
WRITE
RESET
00000000
VDD
External pins PTA[3.7]
Pad
Logic
Internal Data bits [3.7], Port A
DDR(3-7)
KBE[3.7]
100k
KBI[3.7]



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