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Z0221524ASCR4508TR 参数 Datasheet PDF下载

Z0221524ASCR4508TR图片预览
型号: Z0221524ASCR4508TR
PDF下载: 下载PDF文件 查看货源
内容描述: 单芯片调制解调器,集成控制器,数据泵和模拟前端 [Single Chip Modem with Integrated Controller, Data Pump, and Analog Front End]
分类和应用: 调制解调器控制器
文件页数/大小: 74 页 / 663 K
品牌: ZILOG [ ZILOG, INC. ]
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Z02215  
Single Chip Modem with Integrated Controller, Data Pump, and AFE  
10  
Table 1. Pin Descriptions (Continued)  
PLCC LQFP  
Pin # Pin #  
Symbol  
Function  
Direction Description  
Note: This comment applies to pins HD0–HD7, respectively.  
HD0–HD7 are the Host Parallel Interface Data bus. Bi-directional, Active High, Parallel mode only. These pins  
constitute an 8-bit bi-directional data bus used for the transfer of control and status information. HD0–HD7 are  
3-stated except for a PIDT or PICR read.  
DTR/HD0 36  
19  
Data Terminal Input  
Ready  
Serial mode only. This signal is asserted by  
the DTE when it is ready to receive data.  
RTS/HD1 37  
20  
Request To  
Send  
Input  
Serial mode only. This signal indicates that the  
DTE is ready to send data to the modem. When  
the modem is ready, it asserts CTS (see CTS,  
below).  
PB2/HD2 38  
PB3/HD3 39  
DCD/HD4 40  
21  
22  
23  
General  
Purpose Output  
Output  
Output  
Output  
Serial mode only. Programmable using  
Diplomat™.  
General  
Purpose Output  
Serial mode only. Programmable using  
Diplomat™.  
Data Carrier  
Detect  
Serial mode only. This signal indicates that a  
modem carrier signal has been detected on the  
line.  
CTS/HD5 41  
24  
25  
Clear To Send Output  
Ring Indicator Output  
Serial mode only. This signal indicates that the  
modem is ready for the DTE to send data to it.  
RI/HD6  
42  
Serial mode only. When active, this signal  
indicates that a ring signal on the phone line is  
detected by the modem.  
DSR/HD7 43  
26  
27  
Data Set Ready Output  
Serial mode only. This pin is the Data Set  
Ready pin and indicates when the modem is  
ready to transmit data. Refer to the &S  
command for details.  
S/P  
44  
Serial or  
Input  
This pin configures the Z02215 Host interface to  
Parallel Mode  
Select  
Serial or Parallel mode. When High (V ), the  
Serial mode is selected and when this pin is tied  
Low (GND), the Parallel mode is selected.  
CC  
Parallel Host Interface  
With the Parallel Host Interface, a host controller can put the Z02215 on its pro-  
cessor bus and access it as a peripheral.The Parallel Interface consists of two  
host registers:  
Register 0–Parallel Interface Data Register (PIDR)  
Register 1–Parallel Interface Status Register (PISR)  
PS001907-0904  
Parallel Host Interface