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參數(shù)資料
| 型號： | MAR28155CXXXX |
| 廠商： | DYNEX SEMICONDUCTOR LTD |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 24 I/O, PIA-GENERAL PURPOSE, CDIP40 |
| 封裝： | CERAMIC, DIP-40 |
| 文件頁數(shù)： | 2/20頁 |
| 文件大小： | 254K |
| 代理商： | MAR28155CXXXX |
MA28155
10/20
OPERATING MODE 2
(Strobed Bidirectional Bus I/0)
This functional configuration provides a means for
communicating with a peripheral device or structure on a
single 8-bit bus for both transmitting and receiving data
(bidirectional bus l/O) . Handshaking signals are provided to
maintain proper bus flow discipline in a similar manner to Mode
1, Interrupt generation and enable/disable functions are also
available.
s Used in group A only.
s One 8-bit bidirectional bus port (port A) and 5-bit control
port (port C).
s Both inputs and outputs are latched,
s The 5-bit control port (port C) is used for control and status
of the 8-bit bidirectional bus port (port A).
NOTE:
Any sequence where RD/WN = 0 coincident with DSN low occurs before ACKN and STBN occurs before RD/WN = 1
coincident with DSN is permissable
(INTR = IBF MASK STBN (RD/WN = 1. DSN = 0) + OBFN MASK ACKN (RD/WN = 0. DSN = 0))
Figure 15: Bidirectional Timing Diagram
DSN
RD/WN
OBFN
ACKN
STBN
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAR28155LXXXX | 24 I/O, PIA-GENERAL PURPOSE, CQCC44 |
| MAS28155CXXXX | 24 I/O, PIA-GENERAL PURPOSE, CDIP40 |
| MAH28155LXXXX | 24 I/O, PIA-GENERAL PURPOSE, CQCC44 |
| MAX3100ETG+ | 1 CHANNEL(S), 230.4K bps, SERIAL COMM CONTROLLER, QCC24 |
| MAX3679AETJ+ | 312.5 MHz, OTHER CLOCK GENERATOR, QCC32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAR2901CB | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:RADIATION HARD 4-BIT MICROPROCESSOR SLICE |
| MAR2901CC | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:RADIATION HARD 4-BIT MICROPROCESSOR SLICE |
| MAR2901CD | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:RADIATION HARD 4-BIT MICROPROCESSOR SLICE |
| MAR2901CE | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:RADIATION HARD 4-BIT MICROPROCESSOR SLICE |
| MAR2901CL | 制造商:ZARLINK 制造商全稱:Zarlink Semiconductor Inc 功能描述:RADIATION HARD 4-BIT MICROPROCESSOR SLICE |
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