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參數(shù)資料
| 型號： | CL-PD6710 |
| 廠商： | CIRRUS LOGIC INC |
| 元件分類： | 總線控制器 |
| 英文描述： | ISA-TOOPC-CARD HOST ADAPTERS |
| 中文描述： | PCMCIA BUS CONTROLLER, PQFP144 |
| 封裝： | VQFP-144 |
| 文件頁數(shù)： | 27/128頁 |
| 文件大小： | 1591K |
| 代理商： | CL-PD6710 |
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CL-PD6710/’22
ISA–to–PC-Card Host Adapters
May 1997
27
PRELIMINARY DATA SHEET v3.1
INTRODUCTION
activate on reads or writes to this virtual extended
register, allowing straightforward single-chip imple-
mentation of an 8-bit general purpose read or write
port.
Chapter 12
provides detailed information on how
this port can be used.
3.1.7
Voltage Sense Pins
The CL-PD6710 provides a single pin to detect 5 V
or 3.3 V on pin 57 of the PC Card.
The CL-PD6722 can be simply configured for dual-
socket VS1 and VS2 detection with an external
read port consisting of half of a ’244 buffer or other
similar device, enabled by the B_GPSTB pin pro-
grammed as a read port.
Chapter 13
provides detailed information on the
programming model for VS1 and VS2 detection
and how connections are made to achieve this
functionality.
3.1.8
CL-PD67XX Power Management
To provide the longest possible battery life, the
CL-PD67XX provides many power management
features, including Low-Power Dynamic mode, Sus-
pend mode, and control of PC Card socket power.
Low-Power Dynamic mode is transparent to the ISA
bus. After reset, the CL-PD67XX is configured for
Low-Power Dynamic mode. This mode can be
turned off by setting
Misc Control 2
register, bit 1 to
‘0’. When in Low-Power Dynamic mode, periods of
inactivity (no activity on the PC Card bus and system
accesses to chip registers or inserted cards are no
longer being performed) cause the CL-PD67XX to
enter a low-power state where the clock is turned off
to most of the chip and the PC Card address and
data lines are set to a static value. V
CC
and V
PP
power to the card is left unchanged. When there is
activity present on the PC Card bus, or the system
accesses CL-PD67XX registers, or PC Cards are
inserted or removed from the socket, the
CL-PD67XX enters its active state, services the
transaction, and then returns to its low-power state.
A Suspend mode can also be programmed. The
CL-PD67XX Suspend mode is the chip’s lowest
software-controlled power mode. The CL-PD67XX
is put into Suspend mode by setting the
Misc Con-
trol 2
register, bit 2 to ‘1’. In Suspend mode, all the
internal clocks are turned off, and only read/write
access to the
Index
register and write access to the
Misc Control 2
register is supported. All accesses
to the PC Cards are ignored when in Suspend
mode. V
CC
and V
PP
power to the card is left
unchanged (the system power management soft-
ware is responsible for turning off power to the
socket and entering Suspend mode). Interrupts and
ring indicate signals are passed through to the sys-
tem bus when in Suspend mode. To exit Suspend
mode, the
Misc Control 2
register bit 2 must be
reset to ‘0’. It requires 50 ms for the CL-PD67XX to
restart the internal clock synthesizer and become
active again.
In addition to the software suspend, if the system
hold’s the AEN signal of the CL-PD67XX high, a
hardware-assisted Super-Suspend mode occurs
where ISA inputs to the chip are internally shut off.
Internal in the CL-PD67XX, the ISA inputs are
ignored and floating conditions on the ISA bus will
not cause high current flow in the CL-PD67XX ISA
input receivers. Since the ISA bus inputs to the core
logic of the CL-PD67XX are also not toggling when
AEN is set high, power consumption is further
reduced. Interrupts and ring indicate signals are
passed through to the system bus when in Super-
Suspend mode
The CL-PD67XX power can be further managed by
controlling socket power as outlined in
Section
3.1.9
. Socket power can be turned on and off
through software or automatically when cards are
inserted or removed. The CL-PD67XX provides six
pins per socket for controlling external logic to switch
V
CC
and V
PP
voltages on and off and for sensing a
card’s operating voltage range. Cards can be turned
off when not in use.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| CL-PD6722 | ISA-TOOPC-CARD HOST ADAPTERS |
| CL-PS6700 | Low-Power PC Card Controller for the CL-PS7111 |
| CL-PS6700-VC-A | Low-Power PC Card Controller for the CL-PS7111 |
| CL-PS7110-VC-A | Low-Power System-on-a-Chip |
| CL-PS7110-VI-A | Low-Power System-on-a-Chip |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CLPD6710VCB | 制造商:CIRRUS 功能描述:* |
| CL-PD6710-VC-B | 制造商:Cirrus Logic 功能描述:PCMCIA BUS CONTROLLER, PQFP144 |
| CLPD6720QCB | 制造商:CIRRUS 功能描述:* |
| CL-PD6720-QC-B | 制造商: 功能描述: |
| CL-PD6720QC-B | 制造商:CIRR 功能描述:6720-QC-B 制造商:Cirrus Logic 功能描述:6720-QC-B |
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