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參數(shù)資料
| 型號： | IS82C59A |
| 廠商： | Intersil |
| 文件頁數(shù)： | 3/22頁 |
| 文件大小： | 0K |
| 描述： | IC CTRLR INTERRUPT 8MHZ 28-PLCC |
| 標準包裝： | 37 |
| 控制器類型： | CMOS 優(yōu)先中斷控制器 |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 電流 - 電源： | 1mA |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-LCC（J 形引線） |
| 供應商設備封裝： | 28-PLCC（11.51x11.51） |
| 包裝： | 帶卷 (TR) |
11
FN2784.5
March 17, 2006
Operation Command Words (OCWs)
After the Initialization Command Words (lCWs) are
programmed into the 82C59A, the device is ready to accept
interrupt requests at its input lines. However, during the
82C59A operation, a selection of algorithms can command
the 82C59A to operate in various modes through the
Operation Command Words (OCWs).
Operation Command Word 1 (OCW1)
OCW1 sets and clears the mask bits in the Interrupt Mask
Register (lMR) M7 - M0 represent the eight mask bits. M = 1
indicates the channel is masked (inhibited), M = 0 indicates
the channel is enabled.
Operation Command Word 2 (OCW2)
R, SL, EOI - These three bits control the Rotate and End of
Interrupt modes and combinations of the two. A chart of
these combinations can be found on the Operation
Command Word Format.
L2, L1, L0 - These bits determine the interrupt level acted
upon when the SL bit is active.
Operation Command Word 3 (OCW3)
ESMM - Enable Special Mask Mode. When this bit is set to 1
it enables the SMM bit to set or reset the Special Mask
Mode. When ESMM = 0, the SMM bit becomes a “don’t
care”.
SMM - Special Mask Mode. If ESMM = 1 and SMM = 1, the
82C59A will enter Special Mask Mode. If ESMM = 1 and
SMM = 0, the 82C59A will revert to normal mask mode.
When ESMM = 0, SMM has no effect.
Fully Nested Mode
This mode is entered after initialization unless another mode
is programmed. The interrupt requests are ordered in priority
from 0 through 7 (0 highest). When an interrupt is
acknowledged the highest priority request is determined and
its vector placed on the bus. Additionally, a bit of the Interrupt
Service register (IS0 - 7) is set. This bit remains set until the
microprocessor issues an End of Interrupt (EOI) command
immediately before returning from the service routine, or if
the AEOI (Automatic End of Interrupt) bit is set, until the
trailing edge of the last INTA. While the IS bit is set, all
further interrupts of the same or lower priority are inhibited,
while higher levels will generate an interrupt (which will be
acknowledged only if the microprocessor internal interrupt
enable flip-flop has been re-enabled through software).
After the initialization sequence, IR0 has the highest priority
and IR7 the lowest. Priorities can be changed, as will be
explained in the rotating priority mode or via the set priority
command.
OPERATION COMMAND WORDS (OCWs)
A0
D7
D6
D5
D4
D3
D2
D1
D0
OCW1
1
M7M6
M5M4M3M2M1M0
OCW2
0
R
SL
EOI
0
L2
L1
L0
OCW3
0
ESMM SMM
0
1
P
RR
RIS
82C59A
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| IS82C59A-12 | 功能描述:IC CTRLR INTERRPT 12.5MHZ 28PLCC RoHS:否 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標準包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應商設備封裝:36-QFN（6x6） 包裝:* 其它名稱:Q6396337A |
| IS82C59A-12/TR100/BAE | 制造商:Intersil Corporation 功能描述:PERIPH UART/BRG 5V 16MHZ 28PLCC IND - Tape and Reel |
| IS82C59A-12R2413 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| IS82C59A-12X96 | 功能描述:接口-I/O擴展器 PERIPH INT CNTRLR 5V 12 5MHZ 28PLCC IND RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
| IS82C59A-12Z | 功能描述:接口-I/O擴展器 W/ANNEAL PERIPH INT CNTRLR 5V 12 5MHZ RoHS:否 制造商:NXP Semiconductors 邏輯系列: 輸入/輸出端數(shù)量: 最大工作頻率:100 kHz 工作電源電壓:1.65 V to 5.5 V 工作溫度范圍:- 40 C to + 85 C 安裝風格:SMD/SMT 封裝 / 箱體:HVQFN-16 封裝:Reel |
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