tmp88f846ug TOSHIBA Semiconductor CORPORATION, tmp88f846ug Datasheet - Page 39

• Manufacturer Part Number: tmp88f846ug
• Description: 8 Bit Microcontroller
• Manufacturer: TOSHIBA Semiconductor CORPORATION

Note 1: Do not set IMF and the interrupt enable flag (EF38 to EF3) to “1” at the same time.
Note 2: In main program, before manipulating the interrupt enable flag (EF) or the interrupt latch (IL), be sure to clear IMF to "0"
(Disable interrupt by DI instruction). Then set IMF newly again as required after operating on the EF or IL (Enable interrupt
by EI instruction)
In interrupt service routine, because the IMF becomes "0" automatically, clearing IMF need not execute normally on inter-
rupt service routine. However, if using multiple interrupt on interrupt service routine, manipulating EF or IL should be exe-
cuted before setting IMF="1".
EF38 to EF3
IMF
Individual-interrupt enable flag
(Specified for each bit)
Interrupt master enable flag
Page 29
0:
1:
0:
1:
Disables the acceptance of each maskable interrupt.
Enables the acceptance of each maskable interrupt.
Disables the acceptance of all maskable interrupts
Enables the acceptance of all maskable interrupts
TMP88F846UG
R/W