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GL640USB 数据表(PDF) 17 Page - List of Unclassifed Manufacturers

部件名 GL640USB
功能描述  IEEE-1284 to USB Bridge
PDF  39 Pages
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制造商  ETC [List of Unclassifed Manufacturers]
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标志 ETC - List of Unclassifed Manufacturers

GL640USB 数据表(HTML) 17 Page - List of Unclassifed Manufacturers

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Revision 1.1
Jun. 7, 1999
-16-
GL640USB, GL640USB-A
INTFLG
93
interrupt flag
UINTEN
94
USB interrupt enable
USBFLG
95
USB interrupt flag
CTLDAT/
STSDAT
96
Control/status data buffer
CTLLEN/
STSLEN
97
Control/status data length
FFCFG
98
FIFO configuration register
FFCTL
99
FIFO control
FF0DAT
9A
data port for FIFO0
FF1DAT
9B
data port for FIFO1
LINE_L
9C
Read : max. length of TX data packet
Write : line size (low byte)
LINE_H
9D
Read : received data length /
Write : line size (high byte)
EPPCTL
9E
EPP control / status
EPPAD
9F
EPP interface AD0-7
IODEVCTL (offset 90h)
R/W
R/O
R/O
R/O
R/W
R/W
R/W
R/O
EXTCLK
EN
NC
NC
GPI4
CKSEL2
CKSEL1
CKSEL0
CLKTYP
CLKTYP
-
select crystal frequency, this bit reflects the OSCSEL pin
0 - 12MHz, 1 - 48MHz
CKSEL[2:0]
-
select CLKOUT frequency, default=8MHz
000 - stop CLKOUT
100 - 8MHz
001 - 24MHz
101 - 6MHz
010 - 16MHz
110 - 12KHz
011 - 12MHz
GPI4
-
this bit reflects the status of GPI4 input pad
EXTCLKEN -
Enable EXTCLK output
0 – set EXTCLK to tri-state
1- enable EXTCLK
ENDPCTL(offset 91h)



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