參數(shù)資料
型號: PCI1410GHK
廠商: Texas Instruments, Inc.
英文描述: PC CARD CONTROLLERS
中文描述: PC卡控制器
文件頁數(shù): 102/145頁
文件大?。?/td> 606K
代理商: PCI1410GHK
5–8
5.4
ExCA Interrupt and General Control Register
The ExCA interrupt and general control register controls interrupt routing for I/O interrupts, as well as other critical
16-bit PC Card functions. See Table 5–6 for a complete description of the register contents.
Bit
7
6
5
4
3
2
1
0
Name
ExCA interrupt and general control
Type
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
0
0
Register:
Offset:
Type:
Default:
ExCA interrupt and general control
CardBus socket address + 803h; ExCA offset 03h
Read/Write
00h
Table 5–6. ExCA Interrupt and General Control Register
BIT
SIGNAL
TYPE
FUNCTION
7
RINGEN
R/W
Card ring indicate enable. Bit 7 enables the ring indicate function of BVD1/RI. This bit is encoded as:
0 = Ring indicate disabled (default)
1 = Ring indicate enabled
6
RESET
R/W
Card reset. Bit 6 controls the 16-bit PC Card RESET, and allows host software to force a card reset. Bit 6
affects 16-bit cards only. This bit is encoded as:
0 = RESET signal asserted (default)
1 = RESET signal deasserted
5
CARDTYPE
R/W
Card type. Bit 5 indicates the PC Card type. This bit is encoded as:
0 = Memory PC Card installed (default)
1 = I/O PC Card installed
4
CSCROUTE
R/W
PCI interrupt CSC routing enable bit. When bit 4 is set (high), the card status change interrupts are routed
to PCI interrupts. When low, the card status change interrupts are routed using bits 7–4 (CSCSELECT field)
in the ExCA card status change interrupt configuration register (ExCA offset 05h, see Section 5.6). This bit
is encoded as:
0 = CSC interrupts are routed by ExCA registers (default).
1 = CSC interrupts are routed to PCI interrupts.
3–0
INTSELECT
R/W
Card interrupt select for I/O PC Card functional interrupts. Bits 3–0 select the interrupt routing for I/O
PC Card functional interrupts. This field is encoded as:
0000 = No interrupt routing (default). CSC interrupts routed to PCI interrupts. This bit setting is
ORed with bit 4 (CSCROUTE) for backwards compatibility.
0001 = IRQ1 enabled
0010 = SMI enabled
0011 = IRQ3 enabled
0100 = IRQ4 enabled
0101 = IRQ5 enabled
0100 = IRQ6 enabled
0111 = IRQ7 enabled
1000 = IRQ8 enabled
1001 = IRQ9 enabled
1010 = IRQ10 enabled
1011 = IRQ11 enabled
1100 = IRQ12 enabled
1101 = IRQ13 enabled
1110 = IRQ14 enabled
1111 = IRQ15 enabled
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