CL-PS6700 Datasheet, PDF (1/48 Pages) Cirrus Logic – Low-Power PC Card Controller for the CL-PS7111

CL-PS6700
Preliminary Data Book
FEATURES
s Direct interface to CL-PS7111 low-power
microcontroller
— Custom multiplexed address/data bus for low pin count
— Supports 13- and 18-MHz operating frequencies
s Fully compatible with PC Card (PCMCIA) Release
2.01 specification
s One or two CL-PS6700s per system
s Low power states
— Operating (25 mW, typical)
— Idle
— Standby (virtually zero power drain)
s Support for PC Card hot insertion and removal
s Read and write buffers
s Support for 3.3- and 5-V PC Cards
s Endian conversion
s Supports the following PC Cards:
— Memory-only card; flash, EPROM, or SRAM
— I/O card; modem and communications
— Cards configured as both I/O and memory
— DMA-capable cards (through software emulation)
s 100-pin VQFP package
Low-Power PC Card
Controller for the CL-PS7111
OVERVIEW
The CL-PS6700 connects directly to a PC Card
(PCMCIA) Release 2.01 socket and has a custom
interface to the CL-PS7111 microcontroller. The
CL-PS7111 can support up to two CL-PS6700
devices, which allows up to two PC Card sockets per
system. Addresses and data are passed to the
CL-PS6700 through 16 bits of the 32-bit Data bus
(D[15:0]).
The PC Card socket is effectively isolated by the
CL-PS6700. Except for power and ground pins, the
pins on the socket only connect to the rest of the
system through the CL-PS6700.
(cont.)
CL-PS7111-to-CL-PS6700 Interface
EXPCLK
NCS[4]
WRITE
SYS_RES_L
RESET_L
PCLK
PCE_L
PTYPE
PB[0]
NEINTN
GPIO
PRDY
PIRQ_L[1:0]
PSLEEP_L
D[15:0]
MD[15:0]
PCTL[2:0]
5 V 3 V V_PP
POWER
V_CC
MODULE
V_PP
PCM_VS[2:1]
PCM_CD[2:1]
PCM_BVD[2:1]
PCM_WP
PCM_RDY
PCM_WAIT
PCM_RESET
PCM_CE[2:1]
PCM_REG_L
PCM_OE_L
PCM_WE_L
PCM_IORD_L
PCM_IOWR_L
PCM_A[25:0]
PCM_D[15:0]
PC CARD
SOCKET
Version 1.0
CIRRUS LOGIC CONFIDENTIAL, NDA REQUIRED
November 1997