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
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.
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Fully compatible with PC Card (PCMCIA) Release
2.01 specification
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One or two CL-PS6700s per system
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Low power states
— Operating (25 mW, typical)
— Idle
— Standby (virtually zero power drain)
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Support for PC Card hot insertion and removal
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Read and write buffers
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Support for 3.3- and 5-V PC Cards
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Endian conversion
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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)
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100-pin VQFP package
(cont.)
CL-PS7111-to-CL-PS6700 Interface
5 V 3 V V
PP
V
CC
V
PP
SYS_RES_L
RESET_L
EXPCLK
NCS[4]
WRITE
PCLK
PCE_L
PTYPE
I/O POWER = V3V_O
PCTL[2:0]
POWER
MODULE
PCM_VS[2:1]
PCM_CD[2:1]
PCM_BVD[2:1]
PCM_WP
PCM_RDY
I/O POWER = V5V_O
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]
CL-PS7111
NEINTN
PIRQ_L[1:0]
GPIO
PSLEEP_L
D[15:0]
MD[15:0]
CL-PS6700
PB[0]
PRDY
PC CARD
SOCKET
PCM_D[15:0]
Version 1.0
C
IRRUS
L
OGIC
C
ONFIDENTIAL
, NDA R
EQUIRED
November 1997
CIRRUS [ CIRRUS LOGIC ]
