COP8SGR728M8 National Semiconductor, COP8SGR728M8 Datasheet - Page 39

• Manufacturer Part Number: COP8SGR728M8
• Description: 8-Bit Microcontroller IC
• Manufacturer: National Semiconductor
• Series: COP8r

Specifications of COP8SGR728M8

• Controller Family/series: COP8
• Core Size: 8 Bit
• Peak Reflow Compatible (260 C): No
• Leaded Process Compatible: No
• Package: 28SOIC W
• Family Name: COP8
• Maximum Speed: 15 MHz
• Ram Size: 512 Byte
• Program Memory Size: 32 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: EPROM
• Number Of Programmable I/os: 40
• Interface Type: USART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

10.0 Interrupts
Programming Example: External Interrupt
WAIT:
INT_EXIT:
SERVICE:
PSW
CNTRL
RBIT
RBIT
SBIT
SBIT
SBIT
JP
.
.
.
.=0FF
VIS
.
.
.
.=01FA
.ADDRW SERVICE
.
.
RETI
.
.
RBIT
.
.
.
JP
INT_EXIT
EXPND, PSW
(Continued)
=00EF
=00EE
0,PORTGC
0,PORTGD
IEDG, CNTRL
EXEN, PSW
GIE, PSW
WAIT
; G0 pin configured Hi-Z
; Ext interrupt polarity; falling edge
; Enable the external interrupt
; Set the GIE bit
; Wait for external interrupt
; The interrupt causes a
; branch to address 0FF
; The VIS causes a branch to
;interrupt vector table
; Vector table (within 256 byte
; of VIS inst.) containing the ext
; interrupt service routine
; Interrupt Service Routine
; Reset ext interrupt pend. bit
; Return, set the GIE bit
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