參數(shù)資料
型號(hào): TP6508
英文描述: Pushbutton Switch; Actuator Diameter:0.078"; Circuitry:6PDT; Switch Operation:6 Changeover Push-Push; Contact Current Max:100mA; Leaded Process Compatible:Yes; Mounting Type:PCB; Switch Function:6PDT
中文描述: 顯卡
文件頁數(shù): 61/134頁
文件大小: 600K
代理商: TP6508
P.58
0
1
1
1
1
1
1
1
1
1
0
0
0
0
1
1
1
1
1
0
0
1
1
0
0
1
1
1
0
1
0
1
0
1
0
1
800x600 color DSTN
CRT/PLASMA
CRT/EL
CRT/Line-clock TFT
CRT/CRT-like TFT
CRT/Single-scan STN LCD
CRT/Dual-scan STN LCD
CRT/Mono LCD
CRT
Extended Indexed Register SREG D0: Configuration Register 3
This is a read only register.
Port address is Hex 3C5.
Default value after hardware reset is Hex FF.
D0-2 Host bus selection bit 0 to 2 (Latched from AA0 to AA2)
D3
Disable A24 pin input data latch (Latched from AA3)
D4
Disable internal dual frequency synthesizer (Latched from AA4)
D5
Reserved (Latched from AA5)
D6
Reserved=1 (Latched from AA6)
D7
Disable PCI bus command asserted on configuration registers accessing (Latched
(Latched from AA7)
Bit 0-2
In addition to an ISA bus connection, TP6508 can be connected directly to VESA local bus , PCI local
bus or 486DX/DX2 local bus to provide additional graphics performance.
Bit 2
Bit 1
Bit 0
Host bus selection
0
0
0
Reserved
0
0
1
Reserved
0
1
0
Reserved
0
1
1
Reserved
1
0
0
Reserved
1
0
1
ISA bus
1
1
0
32-bit PCI Local Bus
1
1
1
Reserved
A logical 1 enables TP6508 to decode A24 pin input for linear address . This configuration bit must
set to 1 for VESA/CPU local bus .
A logical 0 forces TP6508's internal dual frequency synthesizer not in operation. That make TP6508
to select the multiple pin OFF and XTALI as VCLK and MCLK pin . The source of video clock and
memory clock are come from external component by VCLK and MCLK pin .
Reserved.
Reserved.
We can set this bit to logical 0 to force TP6508 not to assert a VGA access cycle on
PCI local bus interface under the configuration read or write command being happend..
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Extended Indexed Register SREG D1: GEC. Test Register
This is a read/write register.
Default value after hardware reset is Hex 00.
Port address is Hex 3C5.
D0-7 Reserved
Bit 0-7
Reserved.
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