PCI1450 Datasheet, PDF (56/132 Pages) Texas Instruments – PC Card Controllers

PCI1450 GFN/GJG
PC CARD CONTROLLER
SCPS044 – SEPTEMBER 1998
interrupt pin register
PCI function 0
Bit
7
6
5
4
3
2
1
0
Name
Interrupt pin – PCI function 0
Type
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
1
PCI function 1
Bit
7
6
5
4
3
2
1
0
Name
Interrupt pin – PCI function 1
Type
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
1
0
Register: Interrupt pin
Type:
Read-only
Offset:
3Dh
Default: The default depends on the interrupt signaling mode.
Description: The value read from this register is function dependent. The value depends on the interrupt
INTRTIE bit in the system control register and the signaling mode, selected through the
device control register. When the INTRTIE bit is set, this register will read 0x01 (INTA) for both
functions. The PCI1450 defaults to signaling PCI & IRQ interrupts through the IRQSER serial
interrupt terminal. Refer to Table 27 for a complete description of the register contents.
Table 27. Interrupt Pin Register Cross Reference
Interrupt Signaling Mode
Parallel PCI interrupts only
Parallel IRQ & parallel PCI interrupts
IRQ serialized (IRQSER) & parallel PCI Interrupts
IRQ & PCI serialized (IRQSER) interrupts (default)
Parallel PCI interrupts only
Parallel IRQ & parallel PCI interrupts
IRQ serialized (IRQSER) & parallel PCI interrupts
IRQ & PCI serialized (IRQSER) interrupts (default)
INTRTIE Bit
0
0
0
0
1
1
1
1
INTPIN
Function 0
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
INTPIN
Function 1
0x02 (INTB)
0x02 (INTB)
0x02 (INTB)
0x02 (INTB)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
0x01 (INTA)
bridge control register
Bit
15 14 13 12 11 10
9
8
7
6†
5
4
3
2
1
0
Name
Bridge control
Type
R
R
R
R
R R/W R/W R/W R/W R/W R/W R R/W R/W R/W R/W
Default 0
0
0
0
0
0
1
1
0
1
0
0
0
0
0
0
Register: Bridge control
Type:
Read-only, Read/Write
Offset:
3Eh (Function 0, 1)
Default: 0340h
Description: This register provides control over various PCI1450 bridging functions. Some bits in this
register are global in nature and should be accessed only through function 0.
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