PCI1221 datasheet(63/123 Pages) TI

63 / 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

23–20

MFUNC5

R/W

Multifunction terminal 5 configuration. These bits control the internal signal mapped to the MFUNC5

terminal as follows:

0000 – GPI4 = General-purpose input (default)

0001 – GPO4 = 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 – ZVSEL1 = Zoom video function 1 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 – LED_SKT = Socket 0 or socket 1 activity LED

1110 – GPE = General-Purpose event signal

1111 – IRQ15 = Parallel ISA type IRQ15

19–16

MFUNC4

R/W

Multifunction terminal 4 configuration. These bits control the internal signal mapped to the MFUNC4

terminal as follows:

NOTE: When the serial bus mode is implemented by pulling down the LATCH terminal, the MFUNC4

terminal provides the SCL signaling.

0000 – GPI3 = General-purpose input (default)

0001 – GPO3 = General-purpose output

0010 – LOCK PCI = Atomic transfer support mechanism

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 – ZVSEL1 = Zoom video function 1 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 – LED_SKT = Socket 0 or socket 1 activity LED

1110 – GPE = General-purpose event signal

1111 – IRQ15 = Parallel ISA type IRQ15

15–12

MFUNC3

R/W

Multifunction terminal 3 configuration. These bits control the internal signal mapped to the MFUNC3

terminal as follows:

0000 – RSVD = Reserved input – high impedance

0001 – IRQSER = Serial interrupt stream, IRQ and optional PCI (default)

0010 – IRQ2 = Parallel ISA type IRQ2

0011 – IRQ3 = Parallel ISA type IRQ3

0100 – IRQ4 = Parallel ISA type IRQ4

0101 – IRQ5 = Parallel ISA type IRQ5

0110 – IRQ6 = Parallel ISA type IRQ6

0111 – IRQ7 = Parallel ISA type IRQ7

1000 – IRQ8 = Parallel ISA type IRQ8

1001 – IRQ9 = Parallel ISA type IRQ9

1010 – IRQ10 = Parallel ISA type IRQ10

1011 – IRQ11 = Parallel ISA type IRQ11

1100 – IRQ12 = Parallel ISA type IRQ12

1101 – IRQ13 = Parallel ISA type IRQ13

1110 – IRQ14 = Parallel ISA type IRQ14

1111 – IRQ15 = Parallel ISA type IRQ15

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