TMP88CS43FG datasheet(39/218 Pages) TOSHIBA

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Page 29

TMP88CS43FG

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

Individual-interrupt enable flag

(Specified for each bit)

Disables the acceptance of each maskable interrupt.

Enables the acceptance of each maskable interrupt.

R/W

IMF

Interrupt master enable flag

Disables the acceptance of all maskable interrupts

Enables the acceptance of all maskable interrupts

TMP88CS43FG bảng dữ liệu(PDF) 39 Page - Toshiba Semiconductor