UPD78F9502MA-CAC-A NEC, UPD78F9502MA-CAC-A Datasheet - Page 10

• Manufacturer Part Number: UPD78F9502MA-CAC-A
• Description: 8BIT MCU, 4K FLASH, 128B RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F9502MA-CAC-A

• Controller Family/series: UPD78F
• No. Of I/o's: 8
• Ram Memory Size: 128Byte
• Cpu Speed: 10MHz
• No. Of Timers: 2
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 4KB
• Oscillator Type: External, Internal

CHAPTER 8 INTERRUPT FUNCTIONS ................................................................................................98
CHAPTER 9 STANDBY FUNCTION ....................................................................................................107
CHAPTER 10 RESET FUNCTION .......................................................................................................114
CHAPTER 11 POWER-ON-CLEAR CIRCUIT .....................................................................................119
CHAPTER 12 LOW-VOLTAGE DETECTOR .......................................................................................123
CHAPTER 13 OPTION BYTE................................................................................................................133
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8.1 Interrupt Function Types .............................................................................................................98
8.2 Interrupt Sources and Configuration..........................................................................................98
8.3 Interrupt Function Control Registers .......................................................................................100
8.4 Interrupt Servicing Operation....................................................................................................102
9.1 Standby Function and Configuration .......................................................................................107
9.2 Standby Function Operation .....................................................................................................109
10.1 Register for Confirming Reset Source ...................................................................................118
11.1 Functions of Power-on-Clear Circuit ......................................................................................119
11.2 Configuration of Power-on-Clear Circuit ...............................................................................120
11.3 Operation of Power-on-Clear Circuit ......................................................................................120
11.4 Cautions for Power-on-Clear Circuit ......................................................................................121
12.1 Functions of Low-Voltage Detector ........................................................................................123
12.2 Configuration of Low-Voltage Detector .................................................................................123
12.3 Registers Controlling Low-Voltage Detector.........................................................................124
12.4 Operation of Low-Voltage Detector ........................................................................................126
12.5 Cautions for Low-Voltage Detector ........................................................................................130
13.1 Functions of Option Byte.........................................................................................................133
13.2 Format of Option Byte..............................................................................................................134
13.3 Caution When the RESET Pin Is Used as an Import-Only Port Pin (P34) ...........................135
7.4.3 Watchdog timer operation in STOP mode (when “low-speed internal oscillator can be stopped by
7.4.4 Watchdog timer operation in HALT mode (when “low-speed internal oscillator can be stopped by
8.4.1 Maskable interrupt request acknowledgment operation ..................................................................102
8.4.2 Multiple interrupt servicing...............................................................................................................104
8.4.3 Interrupt request pending ................................................................................................................106
9.1.1 Standby function..............................................................................................................................107
9.2.1 HALT mode .....................................................................................................................................109
9.2.2 STOP mode.....................................................................................................................................111
software” is selected by option byte) ................................................................................................96
software” is selected by option byte) ................................................................................................97
Preliminary User’s Manual U18681EJ1V0UD