- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄373766 > Z86307 (ZiLOG, Inc.) 8 Bit CMOS MCU for PS/2 mouse(8位CMOS鼠標微控制器) PDF資料下載
參數(shù)資料
| 型號： | Z86307 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | 8 Bit CMOS MCU for PS/2 mouse(8位CMOS鼠標微控制器) |
| 中文描述： | 8位CMOS微控制器的PS / 2鼠標（8位的CMOS鼠標微控制器） |
| 文件頁數(shù)： | 17/24頁 |
| 文件大小： | 326K |
| 代理商： | Z86307 |
Z86307
8-Bit CMOS Z8 MCU For PS/2 Mouse and Trackball Applications
ZiLOG
17
P R E L I M I N A R Y
DS007400-PER0399
Interrupts.
The Z86307 features four interrupts from four
different sources. These interrupts are maskable and prior-
itized (Figure 19). The four sources are divided as follows:
the falling edge of P31, P33, and the two counter/timers.
The Interrupt Mask Register globally or individually en-
ables or disables the four interrupt requests (Table 4).
When more than one interrupt is pending, priorities are re-
solved by a programmable priority encoder that is con-
trolled by the Interrupt Priority register. All Z86307 inter-
rupts are vectored through locations in program memory.
When an interrupt machine cycle is activated, an interrupt
request is granted. This disables all subsequent interrupts,
saves the Program Counter and Status Flags, and then
branches to the program memory vector location reserved
for that interrupt. This memory location and the next byte
contain the 16-bit starting address of the Interrupt Service
Routine for that particular interrupt request.
To accommodate polled interrupt systems, interrupt inputs
are masked and the Interrupt Request Register is polled to
determine which of the interrupt requests needs service.
Table 4. Interrupt Types, Sources, and Vectors
Source
P33
P31
T0
T1
Name
IRQ1
IRQ2
IRQ4
IRQ5
Vector
2,3
4,5
8,9
10,11
Location
External
External
Internal
Internal
Comments
Falling Edge
Falling Edge
Note:
IRQ0 and IRQ2 are disabled.
Figure 19. Interrupt Block Diagram
IRQ
IMR
IPR
Priority
Logic
6
Vector Select
Global
Interrupt
Enable
Interrupt
Request
IRQ0–IRQ5
相關PDF資料 |
PDF描述 |
|---|---|
| Z86317 | CMOS Z8 8-BIT MICROCONTROLLER |
| Z86418 | Z8 8-BIT Mouse Controller(8位CMOS鼠標微控制器) |
| Z86733 | 1.0UF/630VDC METAL POLY CAP |
| Z86743 | CMOS Z8 OTP Microcontroller(CMOS Z8系列一次可編程微控制器) |
| Z86E33 | CMOS Z8 OTP Microcontroller(CMOS Z8系列一次可編程微控制器) |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| Z8630804PSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| Z8630804SSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| Z86317 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:CMOS Z8 8-BIT MICROCONTROLLER |
| Z8631704PSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
| Z8631704SSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller |
發(fā)布緊急采購，3分鐘左右您將得到回復。