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參數(shù)資料
| 型號： | Z86K16 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | CMOS Z8 8-Bit MCU Keyboard Controllers |
| 中文描述： | Z8的CMOS 8位微控制器鍵盤控制器 |
| 文件頁數(shù)： | 16/24頁 |
| 文件大?。?/td> | 170K |
| 代理商： | Z86K16 |
Z86K13/K14/K15/K16/K17/K18
CMOS Z8 8-Bit MCU Keyboard Controllers
Zilog
16
P R E L I M I N A R Y
DS97KEY0204
PIN FUNCTIONS
(Continued)
Interrupts.
The Z86K15 has five different interrupts from
five different sources. These interrupts are maskable and
prioritized (Figure 16). The five sources are divided as fol-
lows: four sources are claimed by Port 3 lines P33-P30,
and the other is claimed by the counter/timer. The Interrupt
Masked Register globally or individually enables or dis-
ables the five interrupts requests.
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 interrupts are
vectored through locations in the program memory. When
an interrupt machine cycle is activated an interrupt request
is granted. Thus, this disables all of the subsequent inter-
rupts, saves the Program Counter and status flags, and
then branches to the program memory vector location re-
served for that interrupt. This memory location and the
next byte contain the 16-bit 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 request needs service.
RC Oscillator.
The Z86K13/14/15 provides an internal ca-
pacitor to accommodate an RC oscillator configuration. A
1% precision resistor is necessary to achieve
±
10% accu-
rate frequency oscillation.
The Z86K15 also accepts external clock from (RCIN) with
(AGND) connected to V
CC
(Figure 17).
Figure 16. Interrupt Block Diagram
IRQ
IMR
Priority
Logic
Global
Interrupt
Enable
Vector Select
Interrupt
Request
5
IRQ0-IRQ4
5
IPR
Figure 17. RC Oscillator Configuration
RCIN
NC
1%
Precision
CLKOUT
VCC
RC Oscillator
External Clock
RCIN
AGND
VCC
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Z86K17 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:CMOS Z8 8-Bit MCU Keyboard Controllers |
| Z86K18 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:CMOS Z8 8-Bit MCU Keyboard Controllers |
| Z86L02 | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:LOW-COST, 512-BYTE ROM MICROCONTROLLERS |
| Z86L0208HSGRXXX | 功能描述:8位微控制器 -MCU Z8 512 BYTE ROM 8 MHZ LV (L/F) 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(fēng)格:SMD/SMT |
| Z86L0208PEC | 制造商:ZILOG 制造商全稱:ZILOG 功能描述:LOW-COST, 512-BYTE ROM MICROCONTROLLERS |
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