參數(shù)資料
型號(hào)： Z86C8316SSC
廠商： ZILOG INC
元件分類： 微控制器/微處理器
英文描述： Z8 MCU MICROCONTROLLERS
中文描述： 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PDSO28
封裝： PLASTIC, SOIC-28
文件頁(yè)數(shù)： 37/46頁(yè)
文件大?。?/td> 957K
代理商： Z86C8316SSC
Z86C83/C84
Z8
MCU Microcontrollers
37
DS96DZ80203
FUNCTIONAL DESCRIPTION
(Continued)
Watch-Dog Timer Mode Register (WDTMR).
The WDT
is a retriggerable one-shot timer that resets the Z8 if it
reaches its terminal count. The WDT is initially enabled by
executing the WDT instruction and refreshed on
subsequent executions of the WDT instruction. The WDT
circuit is driven by an on-board RC oscillator or external
oscillator from the XTAL1 pin. The POR clock source is
selected with bit 4 of the WDT register (Figure 38).
WDT instruction affects the Z (Zero), S (Sign), and V
(Overflow) flags. The WDTMR must be written to within 64
internal system clocks. After that, the WDTMR is write
protected.
Note:
WDT time-out while in Stop-Mode will not reset
SMR, PCON, WDTMR, P2M, P3M, Ports 2 and 3 Data
Registers, but will cause the reset delay to occur.
The Power-On Reset (POR) clock source is selected with
bit 4 of the WDTMR. Bits 0 and 1 control a tap circuit that
determines the time-out period. Bit 2 determines whether
the WDT is active during HALT and bit 3 determines WDT
activity during STOP. If bits 3 and 4 of this register are both
set to "1," the WDT is only driven by the external clock
during STOP mode. This feature makes it possible to wake
up from STOP mode from an internal source. Bits 5
through 7 of the WDTMR are reserved (Figure 39). This
register is accessible only during the first 64 processor
cycles (64 SCLKs) from the execution of the first
instruction after Power-On-Reset, Watch-Dog Reset or a
Stop-Mode Recovery. After this point, the register cannot
be modified by any means, intentional or otherwise. The
WDTMR cannot be read and is located in Bank F of the
Expanded Register group at address location 0FH.
Figure 38. Resets and WDT
CLK
18 Clock RESET
Generator
RESET
Clear
WDT TAP SELECT
RC
OSC.
CK
CLR
128 SCLK
POR
128
SCLK
WDT/POR Counter Chain
256
SCLK
512
SCLK
2048
SCLK
3.0V Operating
Voltage Det.
Internal
RESET
WDT Select
(WDTMR)
CK Source
Select
(WDTMR)
XTAL
VCC
3.0V REF
From Stop
Mode
Recovery
Source
WDT
Stop Delay
Select (SMR D5)
12 ns Glitch Filter
+
-
M
U
X
/RESET
相關(guān)PDF資料
PDF描述
Z86C8316VEC Z8 MCU MICROCONTROLLERS
Z86C8316VSC Z8 MCU MICROCONTROLLERS
Z86C8416PEC Z8 MCU MICROCONTROLLERS
Z86C8416PSC Z8 MCU MICROCONTROLLERS
Z86C8416SEC Z8 MCU MICROCONTROLLERS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
Z86C8316VEC 制造商:ZILOG 制造商全稱:ZILOG 功能描述:Z8 MCU MICROCONTROLLERS
Z86C8316VSC 制造商:ZILOG 制造商全稱:ZILOG 功能描述:Z8 MCU MICROCONTROLLERS
Z86C84 制造商:ZILOG 制造商全稱:ZILOG 功能描述:Z8 MCU MICROCONTROLLERS
Z86C8401ZEM 功能描述:仿真器/模擬器 Z8 In-Circuit Em-C84 RoHS:否 制造商:Blackhawk 產(chǎn)品:System Trace Emulators 工具用于評(píng)估:C6000, C5000, C2000, OMAP, DAVINCI, SITARA, TMS470, TMS570, ARM 7/9, ARM Cortex A8/R4/M3 用于:XDS560v2
Z86C8416PEC 制造商:ZILOG 制造商全稱:ZILOG 功能描述:Z8 MCU MICROCONTROLLERS
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*