參數(shù)資料
型號(hào)： CXA1871S
廠商： Sony Corporation
元件分類： 外設(shè)及接口
英文描述： Single Supply RS232C Line Driver/Receiver(?????μ?o?RS232C ?o?????????¨???2???2??????)
中文描述： 單電源RS232C接口線路驅(qū)動(dòng)器/接收器（單電源RS232C接口線收發(fā)器（2發(fā)2收））
文件頁(yè)數(shù)： 41/46頁(yè)
文件大小： 639K
代理商： CXA1871S
—41—
CXA1871S
SYSTEM1(1)
0 = Automatic switching
1 = Fixed according to the bus data
(When
1 is selected, the SYSTEM3 to 5 and X’TAL PIN registers below must be
designated.)
Selects the internal mode switching method.
SYSTEM2 (1)
Selects the V cycle when sync cannot be obtained if automatic switching
is selected by SYSTEM1.
0 = Outputs 60 Hz pulses when sync cannot be obtained.
1 = Outputs 50 Hz pulses when sync cannot be obtained.
SYSTEM3(1)
0 = 60 Hz
1 = 50 Hz
Selects the V cycle.
SYSTEM4 (2)
0 = NTSC
1 = PAL
2 = SECAM
3 = SECAM
Inputs the input signal broadcast system.
SYSTEM5 (1)
0 = 3.58 MHz
1 = 4.43 MHz
Selects the VCO frequency
X'TAL PIN (2)
0 = Pin 2
1 = Pin 3
2 = Pin 4
3 = Pin 4
Selects which of the crystals connected to the various pins to use.
4.43X'TAL (1)
Inputs whether the crystal connected to Pin 2 is 3.58 MHz or 4.43 MHz.
(When connecting a 4.43 MHz crystal, be sure to connect it to Pin 2.)
0 = 3.58 MHz
1
= 4.43 MHz
EXT COLOR (1)
0 = Switched according to the NTSC/PAL identification results
1
= External input
Forcibly switches the DET SW input to external input (R-Y IN, B-Y IN).
DELAY (2)
0 = 0 ns
1 = 40 ns
2 = 80 ns
3 = 120 ns
Allows the following delay times to be added to the Y signal.
Sub Address
10000
Sub Address
10001
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