M38869FFAHP Renesas Electronics America, M38869FFAHP Datasheet - Page 26

• Manufacturer Part Number: M38869FFAHP
• Description: IC 740 MCU FLASH 61K 80LQFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38869FFAHP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: I²C, SIO, UART/USART
• Peripherals: PWM, WDT
• Number Of I /o: 64
• Program Memory Size: 60KB (60K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 5.5 V
• Data Converters: A/D 8x10b; D/A 2x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Key Input Interrupt (Key-on Wake Up)
A Key input interrupt request is generated by applying “L” level to
any pin of port P3 that have been set to input mode. In other
words, it is generated when AND of input level goes from “1” to
Fig. 18 Connection example when using key input interrupt and port P3 block diagram
P 3
P 3
P 3
P 3
P 3
P 3
P 3
P 3
7
6
5
4
o u t p u t
o u t p u t
o u t p u t
o u t p u t
3
1
0
2
i n p u t
i n p u t
i n p u t
i n p u t
P o r t P X x
“ L ” l e v e l o u t p u t
P o r t c o n t r o l r e g i s t e r 1
B i t 5 = “ 1 ”
P o r t c o n t r o l r e g i s t e r 1
B i t 4 = “ 1 ”
P o r t P 3 1
l a t c h
P o r t P 3 7
l a t c h
P o r t P 3 6
l a t c h
P o r t P 3 5
l a t c h
P o r t P 3 4
l a t c h
P o r t P 3 3
l a t c h
P o r t P 3 2
l a t c h
P o r t P 3 0
l a t c h
d i r e c t i o n r e g i s t e r = “ 1 ”
d i r e c t i o n r e g i s t e r = “ 1 ”
d i r e c t i o n r e g i s t e r = “ 1 ”
d i r e c t i o n r e g i s t e r = “ 1 ”
d i r e c t i o n r e g i s t e r = “ 0 ”
d i r e c t i o n r e g i s t e r = “ 0 ”
d i r e c t i o n r e g i s t e r = “ 0 ”
d i r e c t i o n r e g i s t e r = “ 0 ”
P o r t P 3
P o r t P 3
P o r t P 3
P o r t P 3
P o r t P 3
P o r t P 3
P o r t P 3
P o r t P 3
“0”. An example of using a key input interrupt is shown in Figure
18, where an interrupt request is generated by pressing one of the
keys consisted as an active-low key matrix which inputs to ports
P3
7
6
0
–P3
5
4
3
2
1
0
3
.
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
P - c h a n n e l t r a n s i s t o r f o r p u l l - u p
C M O S o u t p u t b u f f e r
K e y i n p u t i n t e r r u p t r e q u e s t
3886 Group
P o r t P 3
I n p u t r e a d i n g c i r c u i t
C o m p a r a t o r c i r c u i t
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