- 您现在的位置：买卖IC网 > PDF目录372964 > Z86L72 (ZiLOG, Inc.) IR MICROCONTROLLER PDF资料下载
参数资料
| 型号： | Z86L72 |
| 厂商： | ZiLOG, Inc. |
| 英文描述： | IR MICROCONTROLLER |
| 中文描述： | 红外单片机 |
| 文件页数： | 50/71页 |
| 文件大小： | 364K |
| 代理商： | Z86L72 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页当前第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页
Z86C72/C92/L72/L92
IR Microcontroller
Zilog
6-50
P R E L I M I N A R Y
DS97LVO0900
FUNCTIONAL DESCRIPTION
(Continued)
When more than one interrupt is pending, priorities are re-
solved by a programmable priority encoder controlled by
the Interrupt Priority register. An interrupt machine cycle is
activated when an interrupt request is granted. This dis-
ables all subsequent interrupts, saves the Program
Counter and Status Flags, and then branches to the pro-
gram memory vector location reserved for that interrupt.
All Z86L/CX2 interrupts are vectored through locations in
the program memory. This memory location and the next
byte contain the 16-bit address of the interrupt service rou-
tine 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 need service.
An interrupt resulting from AN1 is mapped into IRQ2, and
an interrupt from AN2 is mapped into IRQ0. Interrupts
IRQ2 and IRQ0 may be rising, falling, or both edge trig-
gered, and are programmable by the user. The software
can poll to identify the state of the pin.
Programming bits for the Interrupt Edge Select are located
in the IRQ Register (R250), bits D7 and D6 . The configu-
ration is shown in Table 4.
Clock
. The Z86L/CX2 on-chip oscillator has a high-gain,
parallel-resonant amplifier for connection to a crystal, LC,
ceramic resonator, or any suitable external clock source
(XTAL1 = Input, XTAL2 = Output). The crystal should be
AT cut, 1 MHz to 8 MHz maximum, with a series resistance
(RS) less than or equal to 100 Ohms. The Z86L/CX2 on-
chip oscillator may be driven with a cost-effective RC net-
work or other suitable external clock source.
The crystal should be connected across XTAL1 and
XTAL2 using the recommended capacitors (capacitance
greater than or equal to 22 pF) from each pin to ground.
The RC oscillator configuration is an external resistor con-
nected from XTAL1 to XTAL2, with a frequency-setting ca-
pacitor from XTAL1 to ground (Figure 36).
Table 3. Interrupt Types, Sources, and Vectors
Name
IRQ0
Source
/DAV0, IRQ0
Vector
Location
0, 1
Comments
External (P32),
Rising Falling Edge
Triggered
External (P33),
Falling Edge
Triggered
External (P31),
Rising Falling Edge
Triggered
Internal
Internal
IRQ1
IRQ1
2, 3
IRQ2
/DAV2, IRQ2,
T
IN
4, 5
IRQ3
IRQ4
T16
T8
6, 7
8, 9
Table 4. IRQ Register
IRQ
Interrupt Edge
D7
0
0
1
1
D6
0
1
0
1
IRQ2 (P31)
F
F
R
R/F
IRQ0 (P32)
F
R
F
R/F
Notes:
F = Falling Edge
R = Rising Edge
In analog mode, the Stop-Mode Recovery sources selected
by the SMR register are connected to the IRQ1 input. Any of
the Stop-Mode Recovery sources for SMR (except P31, P32,
and P33) can be used to generate IRQ1 (falling edge trig-
gered)
相关PDF资料 |
PDF描述 |
|---|---|
| Z86C7216FSC | IR MICROCONTROLLER |
| Z86L7208FSC | IR MICROCONTROLLER |
| Z86L7208PSC | IR MICROCONTROLLER |
| Z86L7208VSC | IR MICROCONTROLLER |
| Z86C7216VSC | IR MICROCONTROLLER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| Z86L7208FSC | 制造商:ZILOG 制造商全称:ZILOG 功能描述:IR MICROCONTROLLER |
| Z86L7208PSC | 制造商:ZILOG 制造商全称:ZILOG 功能描述:IR MICROCONTROLLER |
| Z86L72-08PSC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| Z86L7208VSC | 制造商:ZILOG 制造商全称:ZILOG 功能描述:IR MICROCONTROLLER |
| Z86L72-08VSC | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
发布紧急采购，3分钟左右您将得到回复。