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參數(shù)資料
| 型號(hào)： | Z80230 |
| 廠商： | ZiLOG, Inc. |
| 英文描述： | ESCC⑩ ENHANCED SERIAL COMMUNICATION CONTROLLER |
| 中文描述： | 食管⑩增強(qiáng)的串行通信控制器 |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 103K |
| 代理商： | Z80230 |
1
GENERAL DESCRIPTION
DC-4021-05
(7-07-92)
The Zilog Enhanced Serial Communications Controller,
Z80230 ESCC, is a pin and software compatible CMOS
member of the SCC family introduced by Zilog in 1981. The
ESCC is a dual-channel, full-duplex data communications
controller capable of supporting a wide range of popular
protocols. The ESCC is built from Zilog’s industry standard
SCC core and is compatible with designs using Zilog’s
SCC to receive and transmit data. It has many improve-
ments that significantly reduce CPU overhead. The addi-
tion of a 4-byte transmit FIFO and an 8-byte receive FIFO
significantly reduces the overhead required to provide
data to, and get data from, the transmitters and receivers.
The ESCC also has many features that improve packet
handling in SDLC mode. The ESCC will automatically:
transmit a flag before the data, reset the Tx Underrun/EOM
latch, force the TxD pin high at the appropriate time when
using NRZI encoding, deassert the /RTS pin after the
closing flag, and better handle ABORTed frames when
using the 10x19 status FIFO. The combination of these
features along with the deeper data FIFOs significantly
simplifies SDLC driver software.
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
The CPU hardware interface has been simplified by reliev-
ing the databus setup time requirement and supporting
the software generation of the interrupt acknowledge sig-
nal (INTACK). These changes allow an interface with less
external logic to many microprocessor families while main-
taining compatibility with existing designs. I/O handling of
the ESCC is improved over the SCC with faster response
of the /INT and /DTR//REQ pins.
The many enhancements added to the ESCC permits a
system design that increases overall system performance
with better data handling and less interface logic.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
Connection
Circuit
Device
Power
Ground
V
GND
V
DD
V
SS
Z80230
ESCC
E
NHANCED
S
ERIAL
C
OMMUNICATION
C
ONTROLLER
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| Z8023010PSC | 功能描述:輸入/輸出控制器接口集成電路 10MHz CMOS ESCC RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| Z80230-10PSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller |
| Z8023010PSG | 功能描述:輸入/輸出控制器接口集成電路 10MHz CMOS ESCC RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| Z8023010VSC | 功能描述:輸入/輸出控制器接口集成電路 10MHz CMOS ESCC RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| Z80230-10VSC | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Communications Controller |
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