M38227ECFP Renesas Electronics America, M38227ECFP Datasheet - Page 26

• Manufacturer Part Number: M38227ECFP
• Description: IC 740 MCU EPROM 48K 80QFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38227ECFP

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SIO, UART/USART
• Peripherals: LCD
• Number Of I /o: 49
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: OTP
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 8x8b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-QFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

Fig. 18 Interrupt control
Fig. 19 Structure of interrupt-related registers
b7
b7
b7
b0
b0
b0
Interrupt request bit
Interrupt enable bit
(ICON1 : address 003E
(INTEDGE : address 003A
Interrupt control register 1
Interrupt edge selection register
Interrupt request register 1
(IREQ1 : address 003C
INT
INT
Serial I/O receive interrupt request bit
Serial I/O transmit interrupt request bit
Timer X interrupt request bit
Timer Y interrupt request bit
Timer 2 interrupt request bit
Timer 3 interrupt request bit
INT
INT
Serial I/O receive interrupt enable bit
Serial I/O transmit interrupt enable bit
Timer X interrupt enable bit
Timer Y interrupt enable bit
Timer 2 interrupt enable bit
Timer 3 interrupt enable bit
INT
INT
INT
INT
Not used (return “0” when read)
0
1
0
1
0
1
2
3
Interrupt disable flag (I)
interrupt request bit
interrupt request bit
interrupt enable bit
interrupt enable bit
interrupt edge selection bit
interrupt edge selection bit
interrupt edge selection bit
interrupt edge selection bit
16
16
)
)
16
)
BRK instruction
0 : Falling edge active
1 : Rising edge active
Reset
b7
b7
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
0 : Interrupts disabled
1 : Interrupts enabled
0 : No interrupt request issued
1 : Interrupt request issued
b0
b0
Interrupt request
MITSUBISHI MICROCOMPUTERS
(ICON2 : address 003F
Interrupt control register 2
Interrupt request register 2
(IREQ2 : address 003D
CNTR
CNTR
Timer 1 interrupt request bit
INT
INT
Key input interrupt request bit
ADT/AD conversion interrupt request bit
Not used (returns “0” when read)
CNTR
CNTR
Timer 1 interrupt enable bit
INT
INT
Key input interrupt enable bit
ADT/AD conversion interrupt enable bit
Not used (returns “0” when read)
(Do not write “1” to this bit.)
2
3
2
3
interrupt request bit
interrupt request bit
interrupt enable bit
interrupt enable bit
0
1
0
1
interrupt request bit
interrupt request bit
interrupt enable bit
interrupt enable bit
3822 Group
16
16
)
)
23