Datasheet > Z80182

Z80182

更新时间： 2022-12-08 22:56:52

品牌	Logo	应用领域
ZILOG		控制器
页数	文件大小	规格书
109页	734K
描述
ZILOG INTELLIGENT PERIPHERAL CONTROLLER (ZIP⑩)

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

Z80182 数据手册

Z80182/Z8L182

ZILOG INTELLIGENT PERIPHERAL

Zilog

P R E L I M I N A R Y

EMULATION SIGNALS

EV1, EV2. Emulation Select (input). These two pins

determine the emulation mode of the Z180 MPU (Table 1).

Table 1. Evaluation Modes

EV1 Description

Normal mode, on-chip Z180 bus master

Mode

EV2

Emulation Adapter Mode

Emulator Probe Mode

Reserved for Test

SYSTEM CONTROL SIGNALS

ST.Status(output,activeHigh).Thissignalisusedwiththe

/M1 and /HALT output to decode the status of the CPU

machine cycle. If unused, this pin should be pulled to V_DD.

/RAMCS. RAM Chip Select (output, active Low). Signal

used to access RAM based upon the Address and the

RAMLBR and RAMUBR registers and /MREQ.

/RESET. Reset Signal (input, active Low). /RESET signal is

used for initializing the MPU and other devices in the

system. It must be kept in the active state for a period of at

least three system clock cycles.

/ROMCS. ROM Chip Select (output, active Low). Signal

used to access ROM based upon the address and the

ROMBR register and /MREQ.

E. Enable Clock (output, active High). Synchronous

IEI.Interrupt Enable Signal (input, active High). IEI is used

with the IEO to form a priority daisy chain when there is

more than one interrupt-driven peripheral.

machine cycle clock output during bus transactions.

XTAL. Crystal (input, active High). Crystal oscillator

connection.Thispinshouldbeleftopenifanexternalclock

is used instead of a crystal. The oscillator input is not a TTL

level (reference DC characteristics).

IEO. Interrupt Enable Output Signal (output, active High).

Inthedaisy-chaininterruptcontrol,IEOcontrolstheinterrupt

of external peripherals. IEO is active when IEI is 1 and the

CPU is not servicing an interrupt from the on-chip

peripherals. This pin is multiplexed with /IOCS on the

/IOCS/IEO pin. The /IOCS function is the default on Power

On or Reset conditions and is changed by programming

bit 2 in the Interrupt Edge/Pin MUX Register.

EXTAL.ExternalClock/Crystal(input,activeHigh).Crystal

oscillator connections to an external clock can be input to

theZ80180onthispinwhenacrystalisnotused. Thisinput

is Schmitt triggered.

PHI. System Clock (output, active High). The output is

used as a reference clock for the MPU and the external

system. The frequency of this output is reflective of the

functional speed of the processor. In clock divide-by-two

mode, the pHI frequency is half that of the crystal or input

clock.Ifdivide-by-onemodeisenabled,thePHIfrequency

is equivalent to that of crystal or input frequency. The PHI

frequency is also fed to the ESCC core. If running over 20

MHz (5V) or 10 MHz (3V) the PHI-ESCC frequency divider

should be enabled to divide the PHI clock by two prior to

feeding into the ESCC core.

/IOCS. Auxiliary Chip Select Output Signal (output, active

Low). This pin is multiplexed with /IEO on the /IOCS/IEO

pin. /IOCS is an auxiliary chip select that decodes A7, A6,

/IORQ, /M1 and effectively decodes the address space

xx80H to xxBFH for I/O transactions. A15 through A8 are

not decoded so that the chip select is active in all pages of

I/Oaddressspace. The/IOCSfunctionisthedefaultonthe

/IOCS/IEO pin after Power On or Reset conditions and is

changed by programming bit 2 in the Interrupt Edge/Pin

MUX Register.

DS971820600

3-10

1...7 8 91011 12 13...109

中文翻译

下载PDF

与Z80182相关器件

型号	品牌	获取价格	描述	数据表
Z8018216ASC	ZILOG	获取价格	IC MPU ZIP 16MHZ 100VQFP
Z8018216ASC00TR	ZILOG	获取价格	IC MPU ZIP 16MHZ 100LQFP
Z8018216ASC1838	ZILOG	获取价格	IC MPU ZIP 16MHZ 100VQFP
Z8018216ASC1838TR	ZILOG	获取价格	IC MPU ZIP 16MHZ 100LQFP
Z8018216ASCTR	ZILOG	获取价格	Microcontroller, 8-Bit, 16MHz, CMOS, PQFP100, PLASTIC, VQFP-100
Z8018216ASCXXXX	ZILOG	获取价格	Microcontroller, 8-Bit, 16MHz, CMOS, PQFP100, PLASTIC, VQFP-100
Z8018216ASG	ZILOG	获取价格	IC 8-BIT, 16 MHz, MICROCONTROLLER, PQFP100, PLASTIC, VQFP-100, Microcontroller
Z8018216ASG1838	ZILOG	获取价格	IC MPU ZIP 16MHZ 100LQFP
Z8018216FSC	ZILOG	获取价格	IC 8-BIT, 16 MHz, MICROCONTROLLER, PQFP100, PLASTIC, QFP-100, Microcontroller
Z8018216FSC00TR	ZILOG	获取价格	IC MPU ZIP 16MHZ 100QFP

与Z80182相关文章

压敏电阻器在直流电路中的过压保护应用探讨
2024-06-07

1
电感耐压值及其与电感大小的关系
2024-06-07

4
CNY17F光耦合器：特性、应用、封装、引脚功能及替换型号解析
2024-06-07

3
DS1307资料解析：特性、引脚说明、替代推荐
2024-06-07

1

产品中心

服务支持

精选活动

关于我们

帮助中心

Z80182

Z80182 数据手册

与Z80182相关器件

与Z80182相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

Z80182

Z80182 数据手册

与Z80182相关器件

与Z80182相关文章

您还可以找

您在本页遇到什么问题？