SPD6729QCE Intel, SPD6729QCE Datasheet - Page 27

• Manufacturer Part Number: SPD6729QCE
• Description: PCI To PC Card (PCMCIA) Controller 208-Pin MQFP
• Manufacturer: Intel

Specifications of SPD6729QCE

• Package: 208MQFP
• Operating Temperature: 0 to 70 °C

3.1.4
Datasheet
Figure 6. A Typical ZV Port Implementation
Interrupts
In a PC-compatible system with a PCI bus, there usually are two types of interrupts in use:
The PD6729 provides ten interrupt pins that are individually programmable to work as either PCI-
type ‘INT#’ open-drain interrupts or ISA-type ‘IRQ’ totem-pole output interrupts. Bits 3 and 4 of
the Extension Control 1 register select PCI-bus or ISA-architecture-compatible interrupt
programming.
The PD6729 interrupt pins are labeled with names suggesting their mapping in a PCI-bus-based,
ISA-architecture-compatible system, though there are no hard requirements specifying the exact
mapping. Typically, all ten interrupt pins should be connected to system interrupt signals to allow
maximum flexibility in programming interrupt routing from the PD6729.
DRAM
•
•
GD7XXX
Four PCI-defined, active-low, open-drain, shared interrupt lines INTA# through INTD#
A number of ISA-architecture-defined, active-high, totem-pole IRQ output interrupts
ANALOG ENCODER
MOTHERBOARD
PD6729
TV
LCD
19
ZV PORT
(Video)
CRT
CODEC
AUDIO
AMP
4
PCM
AUDIO
INPUT
PCI-to-PC Card (PCMCIA) Controller — PD6729
SPEAKERS
INTERFACE
PC CARD
19
4
AUDIO
VIDEO & CONTROL
PC CARD
VIDEO DECODER
PCM CONVERTER
NTSC/PAL RF SIGNAL
AUDIO
VIDEO
27