參數(shù)資料
型號: TMP86PM29BUG
廠商: Toshiba Corporation
英文描述: Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.3 to 5.6; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
中文描述: 8位微控制器
文件頁數(shù): 50/204頁
文件大?。?/td> 1774K
代理商: TMP86PM29BUG
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Page 36
3. Interrupt Control Circuit
3.2 Interrupt enable register (EIR)
TMP86PM29BUG
Interrupt latches are not set to “1” by an instruction.
Since interrupt latches can be read, the status for interrupt requests can be monitored by software.
Note: 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
interrupt service routine. However, if using multiple interrupt on interrupt service routine, manipulating EF or IL
should be executed before setting IMF="1".
3.2
Interrupt enable register (EIR)
The interrupt enable register (EIR) enables and disables the acceptance of interrupts, except for the non-maskable
interrupts (Software interrupt, undefined instruction interrupt, address trap interrupt and watchdog interrupt). Non-
maskable interrupt is accepted regardless of the contents of the EIR.
The EIR consists of an interrupt master enable flag (IMF) and the individual interrupt enable flags (EF). These
registers are located on address 003AH and 003BH in SFR area, and they can be read and written by an instructions
(Including read-modify-write instructions such as bit manipulation or operation instructions).
3.2.1
Interrupt master enable flag (IMF)
The interrupt enable register (IMF) enables and disables the acceptance of the whole maskable interrupt.
While IMF = “0”, all maskable interrupts are not accepted regardless of the status on each individual interrupt
enable flag (EF). By setting IMF to “1”, the interrupt becomes acceptable if the individuals are enabled. When
an interrupt is accepted, IMF is cleared to “0” after the latest status on IMF is stacked. Thus the maskable inter-
rupts which follow are disabled. By executing return interrupt instruction [RETI/RETN], the stacked data,
which was the status before interrupt acceptance, is loaded on IMF again.
The IMF is located on bit0 in EIRL (Address: 003AH in SFR), and can be read and written by an instruction.
The IMF is normally set and cleared by [EI] and [DI] instruction respectively. During reset, the IMF is initial-
ized to “0”.
3.2.2
Individual interrupt enable flags (EF15 to EF4)
Each of these flags enables and disables the acceptance of its maskable interrupt. Setting the corresponding
bit of an individual interrupt enable flag to “1” enables acceptance of its interrupt, and setting the bit to “0” dis-
ables acceptance. During reset, all the individual interrupt enable flags (EF15 to EF4) are initialized to “0” and
all maskable interrupts are not accepted until they are set to “1”.
Note: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 nor-
Example 1 :Clears interrupt latches
DI
; IMF
0
LDW
(ILL), 1110100000111111B
; IL12, IL10 to IL6
0
EI
; IMF
1
Example 2 :Reads interrupt latchess
LD
WA, (ILL)
; W
ILH, A
ILL
Example 3 :Tests interrupt latches
TEST
(ILL). 7
; if IL7 = 1 then jump
JR
F, SSET
相關(guān)PDF資料
PDF描述
TMP86PM46NG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.4 to 5.7; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86PM47AUG_07 Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.6 to 5.9; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
TMP86PM47AUG CMOS 8-Bit Microcontroller
TMP86PM47U CMOS 8-Bit Microcontroller
TMP86PM49FG Zener Diode; Application: General; Pd (mW): 500; Vz (V): 5.7 to 6.0; Condition Iz at Vz (mA): 5; C (pF) max: -; Condition VR at C (V):   ESD (kV) min: -; Package: DO-35
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMP86PM29BUG(C) 功能描述:8位微控制器 -MCU 8b MCU w/ LCD Drvr 128 pxls 32B ROM RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
TMP86PM29F 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller
TMP86PM29U 制造商:TOSHIBA 制造商全稱:Toshiba Semiconductor 功能描述:CMOS 8-Bit Microcontroller
TMP86PM29U/F 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS 8-Bit Microcontroller
TMP86PM46NG(OA) 制造商:Toshiba America Electronic Components 功能描述: