參數(shù)資料
型號(hào)： W78958B
廠商： WINBOND ELECTRONICS CORP
英文描述： 8-BIT EMULATION MICROCONTROLLER
中文描述： 8位單片機(jī)仿真
文件頁(yè)數(shù)： 6/28頁(yè)
文件大?。?/td> 272K
代理商： W78958B
W78958B
- 6 -
P3.7
P3.0 Port 3, Bits 7
0
TYPE
MODE
DESCRIPTION
Advanced
Normal
Functions are the same as those in the W78C32.
Emulation
Frozen in the original state.
Standard
Normal
Functions are the same as those in the W78C52.
Emulation
Frozen in the original state.
DP4.7
DP4.0 Address/Data Bus, Bits 7
0
TYPE
MODE
DESCRIPTION
Advanced
Normal
DP4 provides a multiplexed low-byte address/data bus during
accesses to external memory.
Emulation
When ESEL is held at "L" level, DP4 is the data input/output of the
SFR/PC and internal RAM. When ESEL is held at "H" level, DP4 is
in high impedance state.
Standard
Normal
Pins ROMS1 and ROMS0 determine functions of DP4. For details,
see Table D2.
Emulation
Same as in the advanced type.
ROMS1
ROMS0
FUNCTIONS OF DP4
0
0
Provides a multiplexed low-byte address/data bus during accesses to
external 4 KB EPROM.
0
1
Provides a multiplexed low-byte address/data bus during accesses to
external 8 KB EPROM.
1
0
Provides a multiplexed low-byte address/data bus during accesses to
external 16 KB EPROM.
1
1
Provides a multiplexed low-byte address/data bus during accesses to
external 32 KB EPROM.
Table D2.
相關(guān)PDF資料
PDF描述
W78958BF 8-BIT EMULATION MICROCONTROLLER
W78C154 8-BIT EMULATION MICROCONTROLLER
W78C31 8-BIT EMULATION MICROCONTROLLER
W78C32 8-BIT EMULATION MICROCONTROLLER
W78C438 8-BIT EMULATION MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
W78958BF 制造商:WINBOND 制造商全稱:Winbond 功能描述:8-BIT EMULATION MICROCONTROLLER
W7899-W 制造商:Leviton Manufacturing Co 功能描述:Dimmers With 20 Amp Amperage
W78ACSX-1 制造商:Magnecraft 功能描述:
W78ACSX-2 制造商:Magnecraft 功能描述:
W78ACSX3 制造商:Magnecraft 功能描述:3-5 Days
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