COP8SAA720N9 National Semiconductor, COP8SAA720N9 Datasheet - Page 32

IC MCU OTP 8BIT 1K 20DIP

COP8SAA720N9

Manufacturer Part Number
COP8SAA720N9
Description
IC MCU OTP 8BIT 1K 20DIP
Manufacturer
National Semiconductor
Series
COP8™ 8SAr
Datasheet

Specifications of COP8SAA720N9

Core Processor
COP8
Core Size
8-Bit
Speed
10MHz
Connectivity
Microwire/Plus (SPI)
Peripherals
POR, PWM, WDT
Number Of I /o
16
Program Memory Size
1KB (1K x 8)
Program Memory Type
OTP
Ram Size
64 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
20-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
*COP8SAA720N9
COP8SAA720N9B
COP8SAA720NB

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9.0 Interrupts
Programming Example: External Interrupt
WAIT:
SERVICE:
PSW
CNTRL
RBIT
RBIT
SBIT
SBIT
SBIT
JP
.
.
.
.=0FF
VIS
.
.
.
.=01FA
.ADDRW SERVICE
.
.
.
RBIT, EXPND, PSW
.
.
.
RET
(Continued)
0,PORTGC
0,PORTGD
IEDG, CNTRL
GIE, PSW
EXEN, PSW
WAIT
=00EF
=00EE
; Return, set the GIE bit
; G0 pin configured Hi-Z
; Ext interrupt polarity; falling edge
; Set the GIE bit
; Enable the external interrupt
; Wait for external interrupt
; branch to address 0FF
;The VIS causes a branch to
;interrupt vector table
; of VIS inst.) containing the ext
;interrupt service routine
; Interrupt Service Routine
; Reset ext interrupt pend. bit
; The interrupt causes a
; Vector table (within 256 byte
32

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