PCI1031 datasheet(9/100 Pages) TI

9 / 100 page

PCI1031

PCI-TO-PC CARD16 CONTROLLER UNIT

SCPS008B – FEBRUARY 1996 – REVISED DECEMBER 1997

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions (Continued)

interrupt

TERMINAL

I/O

FUNCTION

NAME

NO.

TYPE

FUNCTION

IRQ3/INTA

IRQ4/INTB

154

155

Interrupt request 3 and interrupt request 4. IRQ3/INTA–IRQ4/INTB can be connected to either PCI

or ISA interrupts. IRQ3/INTA–IRQ4/INTB are software configurable as IRQ3 or INTA and as IRQ4

or INTB. When configured for IRQ3 and IRQ4, IRQ3/INTA–IRQ4/INTB must be connected to the ISA

IRQ programmable interrupt controller. When IRQ3/INTA–IRQ4/INTB are configured for INTA and

INTB, IRQ3/INTA–IRQ4/INTB must be connected to available interrupts on the PCI bus.

IRQ7/PCDMAREQ

157

Interrupt request 7. IRQ7/PCDMAREQ is software configurable and is used by the PCI1031 to

request PC/PCI DMA transfers from chipsets that support the PC/PCI DMA scheme. When

IRQ7/PCDMAREQ is configured for PC/PCI DMA request (IRQ7), it must be connected to the

appropriate request (REQ) pin on the Intel Mobile Triton PCI I/O accelerator (MPIIX™) (see

PC/PCI

DMA).

IRQ9/IRQSER

158

I/O

Interrupt request 9/serial IRQ. IRQ9/IRQSER is software configurable and indicates an interrupt

request from a PC Card to the PCI1031. When IRQ9/IRQSER is configured for IRQ9, it must be

connected to the system programmable interrupt controller. IRQSER allowa all IRQ signals to be

serialized onto one pin. IRQ9/IRQSER is configured via bits 2–1 in the device control register of the

TI extension registers (see

device control register).

IRQ10/CLKRUN

159

Interrupt requests 10. IRQ10/CLKRUN is software configurable and is used by the PCI1031 to

support the PCI CLKRUN protocol. When configured as CLKRUN by setting bit 0 in the system

control register at offset 80h, IRQ10/CLKRUN is an open drain output (see

system control register).

IRQ11/PCDMAGNT

160

I/O

Interrupt request 11. IRQ11/PCDMAGNT is software configurable and is used by the PCI1031 to

accept a grant for PC/PCI DMA transfers from chipsets that support the PC/PCI DMA scheme. When

IRQ11/PCDMAGNT is configured for PC/PCI DMA grant (IRQ11), it must be connected to the

appropriate grant (GNT) pin on the Intel MPIIX controller (see

PC/PCI DMA).

IRQ5

IRQ12

IRQ14

156

161

162

Interrupt requests 5, 12, and 14. These signals are ISA interrupts. These terminals indicate an

interrupt request from one of the PC Cards. The interrupt mode is selected in the device control

device control register).

IRQ15/RI_OUT

163

I/O

Interrupt request 15. IRQ15/RI_OUT indicates an interrupt request from one of the PC Cards.

RI_OUT allows the RI input from the 16-bit PC Card to be output to the system. IRQ15/RI_OUT is

configured in the card control register of the TI extension registers (see

card control register).

PC Card power switch

TERMINAL

I/O

FUNCTION

NAME

NO.

TYPE

FUNCTION

CLOCK

151

Power switch clock. Information on the DATA line is sampled at the rising edge of CLOCK. The frequency of

the clock is derived from dividing PCICLK by 36. The maximum frequency of CLOCK is 2 MHz (see

TPS2206

PC Card power control interface).

DATA

152

Power switch data. DATA is used by the PCI1031 to serially communicate socket power control information.

LATCH

150

Power switch latch. LATCH is asserted by the PCI1031 to indicate to the PC Card power switch that the data

on the DATA line is valid.

speaker control

TERMINAL

I/O

FUNCTION

NAME

NO.

TYPE

FUNCTION

SPKROUT/

SUSPEND

149

Speaker. SPKROUT carries the digital audio signal from the PC Card. SUSPEND, when enabled, places

the PCI1031 in PCI suspend/resume (see

power management). SPKROUT/SUSPEND is configured in the

card control register (see

card control register) of the TI extension registers.

PCI1031 Datasheet(PDF) 9 Page - Texas Instruments

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