UPD78F0034BGC-8BS-A Renesas Electronics America, UPD78F0034BGC-8BS-A Datasheet - Page 410

• Manufacturer Part Number: UPD78F0034BGC-8BS-A
• Description: MCU 8-Bit 78K0 CISC 32KB Flash 2.5V/3.3V/5V 64-Pin LQFP
• Manufacturer: Renesas Electronics America

Specifications of UPD78F0034BGC-8BS-A

• Package: 64LQFP
• Family Name: 78K0
• Maximum Speed: 12 MHz
• Ram Size: 1 KB
• Program Memory Size: 32 KB
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 51
• Interface Type: 3-Wire/UART
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

(4) External interrupt rising edge enable register (EGP), external interrupt falling edge enable register (EGN)
408
Address: FF48H After reset: 00H R/W
Symbol
EGP
Address: FF49H After reset: 00H R/W
Symbol
EGN
These registers specify the valid edge for INTP0 to INTP3.
EGP and EGN are set by a 1-bit or 8-bit memory manipulation instruction.
RESET input clears these registers to 00H.
Caution When the function is switched from external interrupt request to port, edge detection may be
performed. Therefore, clear EGPn and EGNn to 0 before switching to the port mode.
Figure 19-5. Format of External Interrupt Rising Edge Enable Register (EGP),
EGPn
7
0
7
0
0
0
1
1
EGNn
External Interrupt Falling Edge Enable Register (EGN)
6
0
6
0
0
1
0
1
CHAPTER 19 INTERRUPT FUNCTIONS
Interrupt disable
Falling edge
Rising edge
Both rising and falling edges
5
0
5
0
User’s Manual U14046EJ5V0UD
INTPn pin valid edge selection (n = 0 to 3)
4
0
4
0
EGN3
EGP3
3
3
EGN2
EGP2
2
2
EGP1
EGN1
1
1
EGP0
EGN0
0
0