PCI1221 datasheet(64/123 Pages) TI

64 / 123 page

PCI1221 GHK/PDV

PC CARD CONTROLLERS

SCPS042 – JULY 1998

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

Table 22. Multifunction Routing Register (Continued)

BIT

SIGNAL

TYPE

FUNCTION

11–8

MFUNC2

R/W

Multifunction terminal 2 configuration. These bits control the internal signal mapped to the MFUNC2

terminal as follows:

0000 – GPI2 = General-purpose input (default)

0001 – GPO2 = General-purpose output

0010 – RSVD

0011 – IRQ3 = Parallel ISA type IRQ3

0100 – IRQ4 = Parallel ISA type IRQ4

0101 – IRQ5 = Parallel ISA type IRQ5

0110 – ZVSTAT = Zoom video status output

0111 – ZVSEL0 = Zoom video function 0 select output

1000 – CAUDPWM = PWM output of CAUDIO CardBus terminal

1001 – IRQ9 = Parallel ISA type IRQ9

1010 – IRQ10 = Parallel ISA type IRQ10

1011 – IRQ11 = Parallel ISA type IRQ11

1100 – RI_OUT = Ring-indicate output

1101 – LEDA2 = Socket 1 activity LED

1110 – GPE = General-purpose event signal

1111 – IRQ7 = Parallel ISA type IRQ7

7–4

MFUNC1

R/W

Multifunction terminal 1 configuration. These bits control the internal signal mapped to the MFUNC1

terminal as follows:

NOTE: When the serial bus mode is implemented by pulling down the LATCH terminal, the MFUNC1

terminal provides the SDA signaling.

0000 – GPI1 = General-purpose input (default)

0001 – GPO1 = General-purpose output

0010 – INTB = PCI interrupt signal, INTB

0011 – IRQ3 = Parallel ISA type IRQ3

0100 – IRQ4 = Parallel ISA type IRQ4

0101 – IRQ5 = Parallel ISA type IRQ5

0110 – ZVSTAT = Zoom video status output

0111 – ZVSEL0 = Zoom video function 0 select output

1000 – CAUDPWM = PWM output of CAUDIO CardBus terminal

1001 – IRQ9 = Parallel ISA type IRQ9

1010 – IRQ10 = Parallel ISA type IRQ10

1011 – IRQ11 = Parallel ISA type IRQ11

1100 – LEDA1 = Socket 0 activity LED

1101 – LEDA2 = Socket 1 activity LED

1110 – GPE = General-purpose event signal

1111 – IRQ15 = Parallel ISA type IRQ15

3–0

MFUNC0

R/W

Multifunction terminal 0 configuration. These bits control the internal signal mapped to the MFUNC0

terminal as follows:

0000 – GPI0 = General-purpose input (default)

0001 – GPO0 = General-purpose output

0010 – INTA = PCI interrupt signal, INTA

0011 – IRQ3 = Parallel ISA type IRQ3

0100 – IRQ4 = Parallel ISA type IRQ4

0101 – IRQ5 = Parallel ISA type IRQ5

0110 – ZVSTAT = Zoom video status output

0111 – ZVSEL0 = Zoom video function 0 select output

1000 – CAUDPWM = PWM output of CAUDIO CardBus terminal

1001 – IRQ9 = Parallel ISA type IRQ9

1010 – IRQ10 = Parallel ISA type IRQ10

1011 – IRQ11 = Parallel ISA type IRQ11

1100 – LEDA1 = Socket 0 activity LED

1101 – LEDA2 = Socket 1 activity LED

1110 – GPE = General-purpose event signal

1111 – IRQ15 = Parallel ISA type IRQ15

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