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| DS90CP04 Datasheet, PDF (14/18 Pages) National Semiconductor (TI) – 4x4 Low Power 2.5 Gb/s LVDS Digital Cross-Point | |||
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ػೳàªà» ( ÍÍ®Í)
TABLE 2. Switch Configuration Data ( ÍÍ®Í)
MSB
LSB OUT1 ʶʹର͢Îàªà¬ OUT2 ʶʹର͢Îàªà¬
1 1 0 ÍÎÎà»Þ®Í·à«Îß¹Îͤ͸à²Ø¸Í·à«à£¦Îà¦ÍÎ͢ɻ
111
OUT3 ʶʹର͢Îàªà¬
OUT4 ʶ ʹର͢Îàªà¬
Ï©ÊÍÎͼίϥÏɾÎÏ
Ϩογϯά
ÏÏΠεΠN Ê· N ÎϨΠͰßà©Í ͨà§ß¹Éºà ¨à§Í·ÏÏΠεÍÏ©Êɾ
ÎÏ
ϨεɺίϥÏɾÎÏ
ϨεͱÎθϩʹ×Î౰ͯÎÎÎ͢ɻ Óà¬Í´à¬
ÍÏÏΠεÍίϥÏɾÎÏ
Ϩε 1 ÍÎ NÉºà¬°Í Í¯Ô¼à¬Í´à¬ÍÏÏΠε
ÍÏ©ÊɾÎÏ
Ϩε 1 ÍÎ NͱͳÎÎ͢ɻγεÏÏͷγϦÎϧà©ÞΠϯ
λÏΣÊε (SCLK ͱ SI) ͸ɺϩÊɾÎÏ
ϨεɺίϥÏɾÎÏ
ϨεͱÎ
ʹθϩͷÏÏΠεʹàªà¬Í Î͢ɻγϦÎϧà©ÞΠϯλÏΣÊεÍÎɺ
ÎÎ«Î·ÎµÍ Í¨ÍÏÏΠεͷϩÊɾÎÏ
ϨεͱίϥÏɾÎÏ
ϨεÎØÎà©
ÞÏ«ÊÏ
ÍγÏÏɾΠϯÍÎÎ͢ɻà©ÞÏÊλÍÏÏΠεʹ༩ÍÎÎ
Îͱɺà£Í·Ï©ÊÍÎͼίϥÏɾÏÏΠεʹૹÎÎÎલʹɺà©ÞÏ«Ê
Ï
಺ͷÎÏ
Ϩε͸಺෦Ͱ 1 Íà¢Ý®ÍÍ©ÎÎ͢ɻϩÊɾÎÏ
Ï¨ÎµÍ 1
Íà¢Ý®ÍÍ©Îͨà©ÞÏÊλÍίϥÏɾΠϯλÏΣÊε (CSO ͱ
CSCLK) ÍÎૹà¥ÍÎɺίϥÏɾÎÏ
Ï¨ÎµÍ 1 Íà¢Ý®ÍÍ©Îͨà©
ÞÏÊλÍÏ©ÊɾΠϯλÏΣÊε (RSOͱ RSCLK) ÍÎγÏÏɾÎ΢
ÏÍÎÎ͢ɻÏϩάϥÏϯάͷରà§
ͱͳÎÏÏΠεʹà©ÞÏ«ÊÏ
Í౸
à¡Í ͨà£à°ºÍ°Í¸ÉºÏ©ÊɾÎÏ
ϨεͱίϥÏɾÎÏ
Ϩε͸ͱÎʹθϩͱ
ͳͬͯÍÎ͢ɻ
ÎϨΠ಺ͷ֤ÏÏΠε͸ɺà§Í´Öà¢ÏϨÊÏͷड৴ÎÎ½Î£Î¿Î«Í Í¯
ÍÎÍ¢ (D29 Ê 24 ʹ 01 1111'b Îͨ͸ 01 1110'b)ɻదà©Í³Öà¢Ï
ϨÊÏɾεÏϦϯάÎÝà¥Í ɺÍÍà¬ÍÏ©ÊɾÎÏ
ϨεͱίϥÏɾÎÏ
ϨεÍͱÎʹθϩͰÍͬͨà§ß¹ÉºÍ¦Í·ÏÏΠε͸ 30 ÏοÏà©ÞÏ«Ê
Ï
ͷεΠονßà©ÏÊλÎÏ©ÊÏ
É¾Ï¨Î´ÎµÎ»Í´Ö¨à³²Í Î͢ɻ
ÎϨΠ಺ͷ֤ÏÏΠε͸ɺγϦÎϧɾΠϯλÏΣÊεÎÕ°Í Í¯à¥±Í´Ï
ϩάϥÏÍÎÎ͢ɻÎϨΠશ ମ Í·ÏϩάϥÏÏ¯Î¬Í ×¬à¾Í ͨÎɺ
LOAD àºà¢ Í´ HIGH ÏϧεÎ༩Íͯɺ֤ÏÏΠεͷϩÊÏ
ɾϨδ
ελͷ಺༰Îßà©Ï¨Î´ÎµÎ»Í´à°¸à«¹Í Î͢ɻLOAD Ïϧεͷàµß¦Í¸Éº
Þà©Ï«ÊÏ
Í·à ·à¤´ÏοÏÍÏ©ÊÏ
ɾϨδελʹ֨ೲÍÎÎÎͰ଴ͨͳ
ÍÎ͹ͳÎÎͤÎÉ»ÍͷλΠÏϯάÍà¸à§ÍÎÎͷ͸ÏϩάϥÏÍ׬
à¾Í ͨ 2 ΫϩοΫ͢ͰÞÉ»
ÎϨΠͷÏϩάϥÏͰ͸ɺ಺෦γÏÏɾϨδελͰà©Í¡Î௥ÕÍ·SCLK
αΠΫϧÎßà¾Í ͳÍÎ͹ͳÎÎͤÎÉ»à£à®Í´à¼©ÍÎà©ÞÏÊλÍ
RSO ͱ CSO ݱʹÎÎÎͰͷϨΠÏϯγ͸ɺཱͪà§ÍÎΤοδ 7 Ϋ
ϩοΫ(SCLK) ෼Ͱ͢ɻÎϨΠ಺ͷ໨తͱ͢ÎÏÏΠεʹà©ÞÏ«Ê
Ï
ÎಧÍÎͨÎʹ͸ɺàªà¤Ü͸à©Í ÍΫϩοΫ਺Î༩ÍÎà¶à½ÍÍ
ÎÎ͢ɻ 4 ÏÏΠεÎγϦÎϧɾνΣÊϯàªà¬Í ͨà§ß¹Í·à©ÞÏ«Ê
Ï
ͷྫΠTable 3. Example to Program a 4 Device Array Í´à£Í Î
Í¢ (OUT1 ʹ IN1ɺOUT2 ʹ IN2ɺOUT16 ʹ IN16)É»ÍÍ·ÎϨÎ
Í·ÏϩάϥÏʹ͸ɺγϦÎϧɾνΣÊϯÎÕ°Í Í¯à»¨à°¤Í±Í¢ÎÏÏΠε
ʹಧÍÎͨÎʹɺ4 à«Í· 30 ÏοÏà©ÞÏ«ÊÏ
Íà¶à½Í°Í¢É»ÎϨÎ
શମΠ120 ΫϩοΫɾαΠΫϧͰÏϩάϥÏϯά͢Îʹ͸ɺνΣÊϯ
Í·à ·ÍÍ´ÞÎÏÏΠεÍÎÏϩάϥÏϯάÎÍ Í¯ÍÍÍͱÍà¥à½Í°
͢ɻà¬ÍÏϩάϥÏϯάɾÏÊλʹÎÍ¬Í¯Éºà ·à¥³Í·ÏÊλ͸νΣÊϯ
Îà¯¨Í Í¯à©Í ÍÏÏΠεʹ޲ÍÍ¬Í¯Ô¡Í à ÎÎͯÍÍÎ͢ɻ
εΠονßà©Í·à²¡Îà¥Í
DS90CP04 ʹಡÎà¥Í ༻ͷÖà¢ÏϨÊÏ (01 1110'b) ÎૹÎͱಡ
Îà¥Í ÏÊÏ
ʹͳÎÎ͢ɻಡÎà¥Í Öà¢ÏϨÊÏÎड৴͢Îͱßà©
Ϩδελà§à¹Í¸Î³ÏÏɾϨδελʹసૹÍÎɺà©ÞÏ«ÊÏ
Í· OUT1
Ê OUT4 Í·ÏοÏɾηάÏϯÏͷಡÎà¥Í à®Í RSOͱ CSO Í·à¾à¹
ÍÎà¥à¾ÍÎÎ͢ɻÏÏΠεÍÎಡÎà¥ÍÎͨÏÊλ͸ɺÏÏΥϧ
ÏɾÎÏ
Ϩε (11 1111'b) ÍÌÍ£Í಺෦ͰÍà¢Ý®ÎͳÍÎà£à®Í·Ï
ÏΠεÎॱʹ௨ͬͯૹÎÎÎ͢ɻϩÊà ·Þà¶Í´ÍÎÏÏΠεͷ
RSO ʹ͸ɺಡÎà¥Í ÏÏΠεÎà¢à°ºÍ±Í¢Îʮ૬ରతʯͳίϥÏɾ
ÎÏ
ϨεÍݱÎÎͨÎɺૹà¥ÏÏΠεͷίϥÏÒà®ÎÙ»ÎÎÎÎ
͢ɻà²à¼·Í´ÉºÎ¯Ï¥Ïà ·Þà¶Í´ÍÎÏÏΠεͷ CSO ʹ͸ɺૹà¥Ï
ÏΠεͷ૬ରϩÊɾÎÏ
ϨεÍݱÎÎ͢ɻ νÏÏϧßà©à§à¹Íà«
à³ÍÎͨಡÎà¥Í à©ÞÏ«ÊÏ
ͷૹà¥ÞɺÏÏΠε͸à£à²à°¤Í´à¥»Í
à ÎÏÊÏ
Í´à»ÎɺSI ÍÎà³à¾ÍÎÎ৽ÙÍ·à©ÞÏ«ÊÏ
Î଴ͪÎ
͢ɻ
Table 4. A Read-Back Example from a 4 Device Array ʹɺ4 ʷ 4
ÏÏΠεɾÎϨΠͷàªà²Í·Ï©ÊÍ´ÍÎ 4 ݸͷÏÏΠεÍÎßà©Ï¨Î´
ελÎಡÎà¥Í¢à¾«Îà£Í Î͢ɻ͢Ͱʹà¥ÎͨÎÍʹɺÎϨΠಡÎà¥
Í Í·Í´à¾×¬Îɺ಺෦γÏÏɾϨδελͷϨΠÏϯγ෼Îà¥à±°Í¢ÎÍ©Í
Í·à¯¥Õ SCLK αΠΫϧÍà¶à½Í°Í¢É» 4 à«à·¼Í· 30 ÏοÏÍ·ßà©Ï¨
δελÎγÏÏɾÎ΢ÏÍ¢Îʹ͸ɺ4 Ê· 30 SCLK ΫϩοΫɾαΠΫϧʹ
ÕÍɺÏÏΠεɾϨΠÏÏ¯Î³à·¼Í±Í Í¯ÏÏΠε 1 ͨÍݸΠ7 SCLK
αΠΫϧÍà¶à½Í°Éºß¹ ÜSCLK ਺͸ 148 ʹͳÎÎ͢ɻγϦÎϧԽ
ÍÎͨಡÎà¥Í ÏÊλ͸ɺϩÊà ·Þà¶Í·ÏÏΠεRSOÍÎRSCLK
Í´à²Í¯Í ظà¥à¾ÍÎÎ͢ɻ 4 à«à·¼Í·ßà©ÏÊλͷಡÎà¥Í ÎγÏ
ÏÉ¾Î Ï¯Í Í¨Íͱ͸ɺSI Î LOW Í´Í Í¯ÍÍÍͱÎਪà¦Í Î͢ɻ
TABLE 3. Example to Program a 4 Device Array
ÏϨÊÏ
D29:D24
Ï©Êɾ
ÎÏ
Ϩε
D23:D18
ίϥÏɾ
ÎÏ
Ϩε
D17:D12
OUT1
D11:D9
OUT2
D8:D6
OUT3
D5:D3
OUT4
D2:D0
SCLK
αΠΫϧ਺
01 1111
00 0000
00 0011
001
010
011
100
30
01 1111
00 0000
00 0010
001
010
011
100
30
01 1111
00 0000
00 0001
001
010
011
100
30
01 1111
00 0000
00 0000
001
010
011
100
30
ÏϩάϥÏϯά޻à°Í·ÎϨΠɾϨΠÏϯγÎà ·à¦Í´Í¢ÎͨÎɺγεÏÏÍ· SI à³à¾ÍÎà ·ÎÔÍÏÏΠεͷ
ßà©à§à¹ÍÎγÏÏÉ¾Î Ï¯Í Í¯ÍÍ©ÍÍÉ»
Í¢ÎͯͷνÏÏϧà§à¹ÍÏ©ÊÏ
ɾϨδελʹ౸à¡Í ͯÍÎÍ¢ÎͯͷεΠονÍßà©ÕೳʹͳÎÎÍ°Í´
2
2 ΫϩοΫɾαΠΫϧͷà®ÔÍà¶à½Í°Í¢É»
Þà©Ï«ÊÏ
Í·Î
ϨΠ಺ÎΫηε
àªÏÏΠε
Ï©ÊɺίϥÏ
0, 3
0, 2
0, 1
0, 0
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