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**82395SX Smart Cache 12/17/90
***Notes:...
**82396SX Smart Cache 12/17/90...
**82485 Turbo Cache (and 485Turbocache) c90...
**82489DX Advanced Programmable Interrupt Controller 10/12/92...
**82495DX/490DX DX CPU-Cache Chip Set <Sep91...
**82495XP/490XP Cache Controller / Cache RAM (for i860) 06/05/91...
**82496/491 Cache Controller / Cache RAM (for P5 Pentium) 03/22/93...
**82497/492 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**82498/493 Cache Controller / Cache RAM (for P54 Pentium) <Nov94...
**
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**VT82C580VP Apollo VP, Pentium/M1/K5 PCI/ISA System <02/15/96
***Info:
The VT82C580VP Apollo-VP is a high performance, cost-effective and
energy efficient chip set for the implementation of PCI/ISA desktop
and notebook personal computer systems based on the 64-bit
P54C/Pentium/K5/M1 super-scalar processors. CPU and cache interface is
supported up to 66Mhz CPU external bus speed (with CPU internal speed
up to 200Mhz and above). The CPU, DRAM and PCI bus are all
independently powered so that each of the bus can be run at 3.3v or
5v, independently. The ISA bus always runs at 5v.
The VT82C580VP chip set consists of the VT82C585VP system controller,
the VT82C586 PCI to ISA bridge, and two instances of the VT82C587VP
data buffers. The CPU bus is minimally loaded with only the CPU,
secondary cache and the chip set. The VT82C587VP data buffers isolate
the CPU bus from the DRAM and PCI bus so that CPU and cache operation
may run reliably at the high frequencies demanded by today's
processors. The VT82C585VP contains arbitration logic to support the
UMA (unified memory architecture) with video/GUI products from major
video vendors. Multiple deep FIFOs (thirty-two double words) are
included between multiple data paths to allow efficient concurrent
operation and DRAM utilization. The VT82C586 PCI to ISA bridge
includes integrated 206-style IPC (DMA, interrupt controller and
timer), integrated keyboard controller with PS2 mouse support,
integrated DS12885 style real time clock with extended 128 byte CMOS
RAM, integrated master mode enhanced IDE controller with full scatter
and gather capability, and integrated USB (universal serial bus)
interface with root hub and two function ports with built-in physical
layer transceiver. A complete main board can be implemented with only
six TTLs. Please refer to Figure 1 [see datasheet] for the system
block diagram.
***Configurations:...
***Features:
o PCI/ISA Green PC Ready
o High Integration
- VT82C585VP system controller
- VT82C586 PCI to ISA bridge
- Two instances of the VT82C587VP data buffers
- Six TTLs for a complete main board implementation
o Flexible CPU Interface
- 64-bit P54C, K5 and M1 CPU interface
- CPU external bus speed up to 66Mhz (internal 200Mhz and above)
- Supports CPU internal write-back cache
- Concurrent CPU/cache and PCI/DRAM operation
- System management interrupt, memory remap and STPCLK mechanism
- Cyril M1 linear burst support
- CPU NA#/Address pipeline capability
o Advanced Cache Controller
- Direct map write back or write through secondary cache
- Burst Synchronous (Pipelined or non-pipelined), asynchronous
SRAM, and Cache Module support
- Eight-pin CWE# and GWE# control options
- Flexible cache size: 0K/256K/512K/1M/2MB
- 32 byte line size to match the primary cache
- Integrated 10-bit tag comparator
- 3-1-1-1 read/write timing for Burst Synchronous SRAM access at
66Mhz
- 3-1-1-1-1-1-1-1 back to back read timing for Burst Synchronous
SRAM access at 66Mhz
- Sustained 3 cycle write access for Burst Synchronous SRAM access
or CPU to DRAM and PCI bus post write buffers at 66Mhz
- 3-2-2-2 (read) and 4-2-2-2 (write) timing for interleaved
asynchronous SRAM access at 66Mhz
- Data streaming for simultaneous primary and secondary cache line
fill
- System and video BIOS cacheable and write-protect
- Programmable cacheable region and cache timing
- Optional combined tag and alter bit SRAM for write-back scheme
o Fast DRAM Controller
- Concurrent DRAM writeback
- Four Cache lines (16 quadwords) of CPU/cache to DRAM write
buffers
- Fast Page Mode/EDO/Burst EDO/Synchronous-DRAM support in a mixed
combination
- Mixed 256K/512K/1M/2M/4M/8M/16MxN DRAMs
- 6 banks up to 512MB DRAMs (maximum four banks of Synchronous
DRAM)
- Flexible row and column addresses
- 64 bit or 32 bit data width in arbitrary mixed combination
- 3.3v and 5v DRAM without external transceivers
- Speculative DRAM access
- Read around Write capability for non-stalled CPU read
- Burst read and write operation
- 4-2-2-2 on page, 7-2-2-2 start page and 9-2-2-2 off page timing
for EDO DRAMs at 50/60Mhz
- 4-2-2-2 on page, 8-2-2-2 start page and 11-2-2-2 off page timing
for EDO DRAMs at 66Mhz
- 5-1-1-1 on page, 8-1-1-1 start page and 10-1-1-1 off page timing
for Burst EDO DRAMs at 66Mhz
- 5-2-2-2-3-1-2-2 back-to-back access for EDO DRAM at 66Mhz
- 5-1-1-1-3-1-1-1 back-to-back access for BEDO DRAM at 66Mhz
- BIOS shadow at 16KB increment
- System management memory remapping
- Decoupled and burst DRAM refresh with staggered RAS timing
- Programmable refresh rate, CAS-before-RAS refresh and refresh on
populated banks only
o Unified Memory Architecture
- Supports VESA UMA handshake protocol
- Compatible with major video/GUI products
- Direct video frame buffer access
- Satisfies maximum latency requirement from REQ# to GNT# and from
GNT# to REQ#
o Intelligent PCI Bus Controller
- 32 bit PCI interface
- Supports 66Mhz and 3.3v/5v PCI bus
- PCI master snoop ahead and snoop filtering
- PCI master Peer Concurrency
- Synchronous Bus to CPU clock with divide-by-two from the CPU
clock
- Automatic detection of data streaming burst cycles from CPU to
the PCI bus
- Five levels (double-words) of CPU to PCI posted write buffers
- Byte merging in the write buffers to reduce the number of PCI
cycles and to create further PCI bursting possibilities
- Zero wait state PCI master and slave burst transfer rate
- PCI to system memory data streaming up to 132Mbyte/sec
- Sixty-four levels (double-words) of post write buffers from PCI
masters to DRAM
- Thirty-two levels (double-words) of prefetch buffers from DRAM
for access by PCI masters
- Enhanced PCI command optimization (MRL, MRM, MWI, etc)
- Complete steerable PCI interrupts
- Supports L1 write-back forward to PCI master read to minimize
PCI read latency
- Supports L1 write-back merged with PCI master post-write to
minimize DRAM utilization
- Provides transaction timer to fairly arbitrate between PCI
masters
- PCI-2.1 compliant
o Enhanced Master Mode PCI IDE Controller
- Dual channel master mode PCI supporting four Enhanced IDE
devices
- Transfer rate up to 22MB/sec to cover PIO mode 4 and Multiword
DMA mode 2 drivers and beyond
- Sixteen levels (doublewords) of prefetch and write buffers
- Interlaced commands between two channels
- Bus master programming interface for ATA controllers SFF-8038
rev.1.0 compliant
- Full scatter and gather capability
- Support ATAPI compliant devices
- Support PCI native and ATA compatibility modes
- Complete software driver support
o Universal Serial Bus Controller
- USB v1.0 and Intel Universal HCI v1.0 compatible
- Eighteen levels(doublwords) of data FIFOs
- Root hub and two function parts with built-in physical layer
transceivers
- Legacy keyboard and PS/2 mouse support
o Plug and Play Controller
- Dual interrupt and DMA signal steering with plug and play control
- Microsoft Windows 95 and plug and play BIOS compliant
o Sophisticated Power Management Unit
- Normal, doze, sleep, suspend and conserve modes
- System event monitoring with two event classes
- One idle timer, one peripheral timer and one general purpose
timer
- More than ten general purpose Input/Output ports
- Six external event input ports with programmable SMI condition
- Complete leakage control when external component is in power off
state
- Primary and secondary interrupt differentiation for individual
channels
- Clock stretching, clock throttling and clock stop control
- Multiple internal and external SMI sources for flexible power
management models
- Two programmable output ports
- APM 1.1 compliant
o PCI to ISA Bridge
- Integrated 82C206 peripheral controller
- Integrated keyboard controller with PS2 mouse supports
- Integrated DS12885 style real time clock with extended 128 byte
CMOS RAM
- Integrated USB (universal serial bus) controller with hub and
two function ports
- Integrated master mode enhanced IDE controller with enhanced
PCI bus commands
- PCI-2.1 compliant with delay transaction
- Four double-word line buffer between PCI and ISA bus
- Supports type F DMA transfers
- Fast reset and Gate A20 operation
- Edge trigger or level sensitive interrupt
- Flash EPROM and combined BIOS support
o Built-in nand-tree pin scan test capability
o 0.6um mixed voltage, high speed and low power CMOS process
o 208 pin PQFP for VT82C585VP
o 208 pin PQFP for VT82C586
o 100 pin PQFP for VT82C587VP
**VT82C580VPX Apollo VPX, VPX/97, Pentium with 66/75MHz Bus <01/09/97...
**VT82C590 Apollo VP2, VP2/97, Single-Chip Pentium 66MHz <01/10/97...
**VT82C597/AT Apollo VP3, Single-Chip for Pentium with AGP <10/03/97...
**VT82C598MVP Apollo MVP3,Single-Chip 66/75/83/100MHz & AGP <09/22/97...
**VT8501 Apollo MVP4,Single-Chip 66-100MHz & AGP <11/04/98...
**VT82C680 Apollo P6, Pentium-Pro Chip Set <08/30/96...
**Support chips:
**VT82C505 Pentium/486 VL to PCI Bridge <05/30/94...
**VT82C586/A/B PCI Integrated Peripheral Controller <10/13/96...
**VT82C596/A Mobile PCI Integrated Peripheral Controller <11/05/97...
**VT82C686A/B PCI Super-I/O Integrated Peripheral Ctrl. <02/10/98...
**Later P-Pro/II/III/Celeron...
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