Z684 PCI Bus Controller
0.5碌m Technology Mega Macrocell
DESCRIPTION
The PCI Bus Controller Mega Macrocell is a featured element in OKI鈥檚 0.5碌m Sea of Gates (SOG) and Cus-
tomer Structured Array (CSA) families. Designers can significantly reduce design and simulation effort
by using OKI's Z684 on PCI bus interface projects. The Z684 is fully compliant with the PCI Bus Revision
2.0 specification.
OKI's Z684 provides a PCI interface, data FIFO and control, and a configuration block in a highly inte-
grated module for system design interfaces that implement the PCI bus protocol. The Z684 connects
between an external PCI bus and a peripheral device鈥檚 internal 486-like bus. Both buses are 32 bits wide
and operate at clock frequencies of up to 33 MHz. Two 4x36-bit write FIFOs enhance system performance.
The cell also supports address and data parity generation and error reporting. PCI-compliant I/O buffers
are available to connect the Z684 to a PCI bus, and are added when the design is implemented in an SOG
array or CSA. By using the Z684, the users may speed up the design cycle and accelerate market entry for
the end product.
FEATURES
鈥?Highly integrated interfaces between
customer's application specific design
module and PCI bus
鈥?Compliant with PCI Bus Revision 2.0
specification
鈥?Internal, i486-like 32-bit address and data bus
interface, with byte-select-enable control
鈥?Two 4x36-bit address, data and byte-enable
write FIFOs
鈥?32-bit PCI address and data bus interface
with byte-select-enable control
鈥?3-V operation
鈥?Built-in internal 64-byte PCI configuration
registers, which can be accessed both from
PCI and module buses
鈥?Built-in memory and I/O address decoding
鈥?Burst write mode operation on both PCI and
module interfaces
鈥?Full support for PCI master and slave
functions
鈥?Full address parity generation, data parity
generation and error checking and correction
(ECC)
鈥?Synchronous operation at up to 33 MHz for
both the PCI and module interfaces
Supported ASIC Families
Family Name
MSM10R0000
MSM13R0000
MSM98R000
Family Type
Sea of Gates
Sea of Gates
Customer Structured Array
OKI SEMICONDUCTOR
1