S5335 datasheet(63/189 Pages) AMCC

63 / 189 page

S5335 – PCI Bus Controller, 3.3V

Revision 5.01 – November 30, 2005

AMCC Confidential and Proprietary

DS1657

Data Sheet

Interrupt Control/Status Register (INTCSR)

This register provides the method for choosing which

conditions are to produce an interrupt on the PCI bus

interface, a method for viewing the cause of the inter-

rupt, and a method for acknowledging (removing) the

interrupt’s assertion.

Interrupt sources:

•

Write Transfer Terminal Count = zero

•

Read Transfer Terminal Count = zero

•

One of the Outgoing mailboxes (1,2,3 or 4)

becomes empty

•

One of the Incoming mailboxes (1,2,3 or 4)

becomes full.

•

Target Abort

•

Master Abort

Figure 29. Interrupt Control/Status Register

Interrupt Control and Status

PCI Address Offset:

38h

Power-up value:

00000000h

Attribute:

Read/Write (R/W), Read/

Write_One_Clear (R/WC)

Size:

32 bits

15 14

Bit

Value

FIFO and Endian Control

Read Transfer

Complete (R/WC)

Write Transfer

Complete (R/WC)

Incoming Mailbox

Interrupt (R/WC)

Outgoing Mailbox

Interrupt (R/WC)

Interrupt Asserted (RO)

Target Abort (R/WC)

Master Abort (R/WC)

00 0 0

D4-D0 Outgoing Mailbox

(Goes empty)

D4=Enable Interrrupt

D3-D2=Mailbox #

0 0=Mailbox 1

0 1=Mailbox 2

1 0=Mailbox 3

1 1=Mailbox 4

D1-D0=Byte #

0 0=Byte 0

0 1=Byte 1

1 0=Byte 2

1 1=Byte 3

D12-D8 Incoming Mailbox (R/W)

(Becomes full)

D12=Enable Interrupt

D11-D10=Mailbox

0 0=Mailbox 1

0 1=Mailbox 2

1 0=Mailbox 3

1 1=Mailbox 4

D9-D8=Byte #

0 0=Byte 0

0 1=Byte 1

1 0=Byte 2

1 1=Byte 3

Interrupt on Write

Transfer Complete

Interrupt on Read

Transfer Complete

Interrupt Source (R/W)

Enable & Selection

Actual Interrupt

Interrupt Selection

S5335 Datasheet(PDF) 63 Page - Applied Micro Circuits Corporation

S5335 Datasheet(HTML) 63 Page - Applied Micro Circuits Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL