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PC CARD 95 (CardBus) Interface Controller - TI PCI1131
TI CardBus Interface Controller 1131 implements the
PCMCIA 2.0/JEIDA 4.1 standard. It contains the following functions:
l PCI interface Specification 2.1
l
Supports Zoom Video Mode
l PCMCIA dual-socket interface
l Five programmable memory windows per socket
l Two I/O windows per socket
l ATA disk interface support
l Programmable Suspend mode
l
Automatic flash memory timing support
l ExCA-compatible
ZV Port Custom Interface
The ZV (Zoomed Video) Port is a single source, point-to-point uni-directional video
bus between a PC Card socket and a VGA controller. The ZV Port complies with
CCIR601 timing to allow NTSC decoders to deliver real-time digital video straight
into the VGA frame buffer from a PC Card. The ZV Port also allows an industry
standard mechanism for transferring digital audio PCM data to a low cost DAC for
conversion to an analog signal.
In this notebook, only the bottom PC Card slot is ZV capable.
L2 Cache Size
Cache Size Data RAM Tag RAM Cacheable Size (8-bits tag)
512KB 64Kx32x2 32Kx8 128MB
L2 Cache Speed
Synchronous SRAM
Cache
Configuration
50MHz (tag/data) 60MHz (tag/data) 66MHz (tag/data)
Read 3-1-1-1
Write 3-1-1-1
15ns/12ns 12ns/9ns 12ns/9ns
DRAM Speed
The speed ratings of DRAM for various CPU external clock rates are listed below
(using 1Mx16 or 2Mx8 memory):
DRAM Speed 50MHz (clocks) 60MHz (clocks) 66MHz(clocks)
70ns read x-3-3-3 read x-4-4-4 read x-4-4-4
70ns write x-3-3-3 write x-3-3-3 write x-3-3-3
Refresh cycle (with CAS-BEFORE-RAS Refresh Cycle) = 2K