UPD78F9221CS-CAC-A Renesas Electronics America, UPD78F9221CS-CAC-A Datasheet - Page 228

• Manufacturer Part Number: UPD78F9221CS-CAC-A
• Description: MCU 8BIT 2KB FLASH 20PIN
• Manufacturer: Renesas Electronics America
• Series: 78K0S/Kx1+r

Specifications of UPD78F9221CS-CAC-A

• Core Processor: 78K0S
• Core Size: 8-Bit
• Speed: 10MHz
• Connectivity: LIN, UART/USART
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 15
• Program Memory Size: 2KB (2K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

226
Address: FFECH
Symbol
INTM0
(3)
External interrupt mode register 0 (INTM0)
This register is used to set the valid edge of INTP0 to INTP2.
INTM0 is set with an 8-bit memory manipulation instruction.
Reset signal generation clears INTM0 to 00H.
Cautions 1. Be sure to clear bits 0 and 1 to 0.
ES21
ES21
ES11
ES01
0
0
1
1
7
0
0
1
1
0
0
1
1
After reset: 00H
ES20
ES10
ES00
2. Before setting the INTM0 register, be sure to set the corresponding interrupt mask flag
ES20
6
0
1
0
1
0
1
0
1
0
1
0
1
Figure 12-4. Format of External Interrupt Mode Register 0 (INTM0)
(
request flag (
enable interrupts.
MK = 1) to disable interrupts. After setting the INTM0 register, clear the interrupt
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
Falling edge
Rising edge
Setting prohibited
Both rising and falling edges
ES11
5
R/W
ES10
CHAPTER 12 INTERRUPT FUNCTIONS
4
IF
= 0), then clear the interrupt mask flag (
User’s Manual U16898EJ6V0UD
ES01
3
ES00
2
INTP2 valid edge selection
INTP1 valid edge selection
INTP0 valid edge selection
1
0
0
0
MK
= 0), which will