參數(shù)資料
型號: M38007S4-XXXHP
廠商: Mitsubishi Electric Corporation
元件分類: DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉(zhuǎn)換器
文件頁數(shù): 44/173頁
文件大?。?/td> 4203K
代理商: M38007S4-XXXHP
1-30
HARDWARE
3800 GROUP USER’S MANUAL
Bus control with memory expansion
The 3800 group has a built-in ONW function to facilitate access to
external memory and I/O devices in memory expansion mode or
microprocessor mode.
If an “L” level signal is input to the ONW pin when the CPU is in a
read or write state, the corresponding read or write cycle is ex-
tended by one cycle of
φ
. During this extended period, the RD or
WR signal remains at “L”. This extension period is valid only for
writing to and reading from addresses 0000
16
to 0007
16
and
0440
16
to FFFF
16
in microprocessor mode, 0040
16
to YYYY
16
in
memory expansion mode, and only read and write cycles are ex-
tended.
Fig. 30 ONW function timing
FUNCTIONAL DESCRIPTION
φ
Read cycle
Write cycle
Dummy cycle Write cycle
Read cycle Dummy cycle
AD
15
to AD
0
Period during which ONW input signal is received
During this period, the ONW signal must be fixed at either “H” or “L”. At all other times, the input level of the ONW
signal has no affect on operations.
The bus cycles is not extended for an address in the area 0008
16
to 043F
16,
regardless of whether the ONW signal
is received.
8
:
8
8
8
ONW
WR
RD
相關(guān)PDF資料
PDF描述
M38007S4-XXXSP 1 watt dc-dc converters
M38007S4-XXXSS 1 watt dc-dc converters
M38007S5-XXXFP 1 watt dc-dc converters
M38007S5-XXXFS 1 watt dc-dc converters
M38007S5-XXXHP 1 watt dc-dc converters
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M38007T-ADS 功能描述:DEV TEMPORARY TARGET BOARD FOR M RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 配件 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:適配器板 適用于相關(guān)產(chǎn)品:RCB230,RCB231,RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE
M38007T-PRB 功能描述:EV 64-PIN RSS/MCU TO .5, .65 & . RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 配件 系列:- 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標(biāo)準(zhǔn)包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關(guān)產(chǎn)品:1-Wire? 設(shè)備 產(chǎn)品目錄頁面:1429 (CN2011-ZH PDF)
M3801 BK001 制造商:Alpha Wire 功能描述:CBL 3COND 18AWG BLK 1000'
M3801 BK002 制造商:Alpha Wire 功能描述:CBL 3COND 18AWG BLK 500'
M3801 BK005 制造商:Alpha Wire 功能描述:CBL 3COND 18AWG BLK 100'