PCI1225PDV datasheet(15/131 Pages) TI

15 / 131 page

PCI1225 GHK/PDV

PC CARD CONTROLLERS

SCPS035B – MAY 1998 – REVISED – MAY 2000

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Terminal Functions (Continued)

multifunction and miscellaneous terminals

TERMINAL

I/O

NAME

NUMBER

I/O

TYPE

FUNCTION

NAME

PDV

GHK

TYPE

MFUNC0

154

F15

I/O

Multifunction terminal 0. MFUNC0 can be configured as parallel PCI interrupt INTA, GPI0,

GPO0, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE, or a

parallel IRQ. See the

multifunction routing register description on page 64 for configuration

details.

MFUNC1

155

E17

I/O

Multifunction terminal 1. MFUNC1 can be configured as parallel PCI interrupt INTB, GPI1,

GPO1, socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE, or a

parallel IRQ. See the

multifunction routing register description on page 64 for configuration

details.

Serial data (SDA). When the serial bus mode is implemented by pulling the LATCH terminal

low, the MFUNC1 terminal provides the SDA signaling. The two-terminal serial interface is

used to load the subsystem identification and other register defaults from an EEPROM after a

PCI reset. See the

serial bus interface implementation description on page 31 for details on

other serial bus applications.

MFUNC2

157

A16

I/O

Multifunction terminal 2. MFUNC2 can be configured as PC/PCI DMA request, GPI2, GPO2,

socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE, or a parallel IRQ.

See the

multifunction routing register description on page 64 for configuration details.

MFUNC3

158

C15

I/O

Multifunction terminal 3. MFUNC3 can be configured as a parallel IRQ or the serialized

interrupt signal IRQSER. See the

multifunction routing register description on page 64 for

configuration details.

MFUNC4

159

E14

I/O

Multifunction terminal 4. MFUNC4 can be configured as PCI LOCK, GPI3, GPO3, socket

activity LED output, ZV switching outputs, CardBus audio PWM, GPE, or a parallel IRQ. See

the

multifunction routing register description on page 64 for configuration details.

Serial clock (SCL). When the serial bus mode is implemented by pulling the LATCH terminal

low, the MFUNC4 terminal provides the SCL signaling. The two-terminal serial interface is

used to load the subsystem identification and other register defaults from an EEPROM after a

PCI reset. See the

serial bus interface implementation description on page 31 for details on

other serial bus applications.

MFUNC5

160

F13

I/O

Multifunction terminal 5. MFUNC5 can be configured as PC/PCI DMA grant GPI4, GPO4,

socket activity LED output, ZV switching outputs, CardBus audio PWM, GPE, or a parallel IRQ.

See the

multifunction routing register description on page 64 for configuration details.

MFUNC6

161

B15

I/O

Multifunction terminal 6. MFUNC6 can be configured as a PCI CLKRUN or a parallel IRQ. See

the

multifunction routing register description on page 64 for configuration details.

RI_OUT/PME

163

C14

Ring indicate out and power management event output. Terminal provides an output for

ring-indicate or PME signals.

SPKROUT

149

G15

Speaker output. SPKROUT is the output to the host system that can carry SPKR or CAUDIO

through the PCI1225 from the PC Card interface. SPKROUT is driven as the exclusive-OR

combination of card SPKR//CAUDIO inputs.

SUSPEND

156

D19

Suspend. SUSPEND is used to protect the internal registers from clearing when the PRST

signal is asserted. See

suspend mode description on page 42 for details.

PCI1225PDV Datasheet(PDF) 15 Page - Texas Instruments

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