參數(shù)資料
型號(hào): LC89210
廠商: Sanyo Electric Co.,Ltd.
英文描述: High-speed fax modem data pump
中文描述: 高速傳真調(diào)制解調(diào)器數(shù)據(jù)泵
文件頁數(shù): 4/10頁
文件大?。?/td> 199K
代理商: LC89210
No. 5382-4/10
LC89210
Analog Interface
V.24 Interface
Other Interfaces
Note: The LC89210 nominal external clock frequency is 29.4912 MHz. This value has a precision of ±5.10
–5
.
Boundary Scan Interface
The LC89210 provides 13 signals for testing. These signals can be used along with the SGS-Thomson ST18932
boundary scan development tools in the product development process to debug application hardware and software. If this
function is not used, all of these input signal must be connected to ground, and all of these output signals must be left
open.
Pin
Type
Function
TXA1
O
Transmission analog output 1
TXA2
O
Transmission analog output 2
RXA1
I
Reception analog input 1
RXA2
I
Reception analog input 2
V
CM
V
REFN
V
REFP
I/O
Analog common voltage (nominal value: +2.5 V)
I
Analog negative reference voltage (nominal value: CM – 1.25 V)
I
Analog positive reference voltage (nominal value: CM + 1.25 V)
Pin
Type
Function
RTS
I
Transfer request. This is an active-low signal.
CLK
O
Data bit clock
CTS
O
Clear to send. This is an active-low signal.
RXD
O
Reception data
TXD
I
Transfer data
CD
O
Carrier detect. This is an active-low signal.
Pin
Type
Function
XTAL
O
Internal oscillator output
EXTAL
I
Internal oscillator input or external clock
EYEX
O
Constellation X analog coordinate (eye pattern)
EYEY
O
Constellation Y analog coordinate (eye pattern)
TEST1
This pin must be left open
TEST2
This pin must be left open
Pin
Type
Function
SCIN
I
Scan data input
SCCLK
I
Scan clock
SCOUT
O
Scan data output
BOS
I
Scan control start
EOS
I
Scan stop
MC0 to MC2
I
Mode control
HALT
I
LC89210 execution step
MC1
O
Multi-cycle instruction
RDYS
O
Scan flag ready
EBS
I
Enable boundary scan
CLKOUT
O
LC89210 internal clock (the crystal oscillator frequency divided by 2)
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