- 您现在的位置：买卖IC网 > PDF目录378244 > 85C30 (Advanced Micro Devices, Inc.) Enhanced Serial Communications Controller PDF资料下载
参数资料
| 型号： | 85C30 |
| 厂商： | Advanced Micro Devices, Inc. |
| 英文描述： | Enhanced Serial Communications Controller |
| 中文描述： | 增强的串行通信控制器 |
| 文件页数： | 9/68页 |
| 文件大小： | 528K |
| 代理商： | 85C30 |
第1页第2页第3页第4页第5页第6页第7页第8页当前第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页
AMD
9
Am85C30
ARCHITECTURE
The ESCC internal structure includes two full-duplex
channels, two 10
×
19 bit SDLC/HDLC frame status
FIFOs, two baud rate generators, internal control and in-
terrupt logic, and a bus interface to a non-multiplexed
bus. Associated with each channel are a number of
Read and Write registers for mode control and status in-
formation, as well as logic necessary to interface with
modems or other external devices (see Logic Symbol).
The logic for both channels provides formats, synchroni-
zation, and validation for data transferred to and from
the channel interface. The modem control inputs are
monitored by the control logic under program control. All
of the modem control signals are general-purpose in na-
ture and can optionally be used for functions other than
modem control.
The register set for each channel includes ten control
(Write) registers, two SYNC character (Write) registers,
and four status (Read) registers. In addition, each baud
rate generator has two (Read/Write) registers for hold-
ing the time constant that determines the baud rate. Fi-
nally, associated with the interrupt logic is a Write
register for the interrupt vector accessible through either
channel, a Write-only Master Interrupt Control register,
and three Read registers: one containing the vector with
status information (Channel B only), one containing the
vector without status (A only), and one containing the in-
terrupt pending bits (A only).
The registers for each channel are designated as
follows:
WR0–WR15—Write Registers 0 through 15. An addi-
tional Write register, WR7 Prime (WR7
′
), is available for
enabling or disabling additional SDLC/HDLC enhance-
ments if bit D
0
of WR15 is set.
RR0–RR3, RR10, RR12, RR13, RR15—Read Regis-
ters 0 through 3, 10, 12, 13, and 15.
If bit D
2
of WR15 is set, then two additional Read regis-
ters, RR6 and RR7, are available. These registers are
used with the 10
×
19 bit Frame Status FIFO.
Table 1 lists the functions assigned to each Read
and Write register. The ESCC contains only one
WR2 and WR9, but they can be accessed by either
channel. All other registers are paired (one for
each channel).
Channel
B
Registers
Data
Control
CPU
Bus VO
Internal
Control
Logic
Internal Bus
Channel
A
Registers
Interrupt
Control
Logic
+5 V GND PCLK
Channel A
Channel B
Control
Logic
Transmitter
Receiver
Baud
Rate
Generator
10
×
19 Bit
Frame
Status
FIFO
Interrupt
Control
Lines
TxDA
RxDA
RTxCA
TRxCA
SYNCA
RTSA
CTSA
DCDA
RxDB
RTxCB
TRxCB
SYNCB
RTSB
CTSB
DCDB
5
10216F-5
TxDB
8
Figure 1. Block Diagram of ESCC Architecture
相关PDF资料 |
PDF描述 |
|---|---|
| 85C72 | 1K CMOS Serial EEPROM(1K位,5.0V CMOS串行EEPROM) |
| 85C82 | 2K CMOS Serial EEPROM(2K位,5.0V CMOS串行EEPROM) |
| 85C92 | 4K CMOS Serial EEPROM(4K位,5.0V CMOS串行EEPROM) |
| 85CNQ015APBF | SCHOTTKY RECTIFIER New GenIII D-61 Package |
| 85CNQ015ASMPBF | SCHOTTKY RECTIFIER New GenIII D-61 Package |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 85C5122DVB-RDTUM | 功能描述:开发板和工具包 - 8051 RAM Indus Green RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| 85C51SND3B1 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface |
| 85C51SND3B1N-7FTUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface |
| 85C51SND3B1N-RTTUL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface |
| 85C51SND3B1N-UL | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:Single-Chip Digital Audio Decoder - Encoder with USB 2.0 Interface |
发布紧急采购，3分钟左右您将得到回复。