PD6710 datasheet(34/138 Pages) INTEL

34 / 138 page

PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers

Datasheet

4.1.9

Socket Power Management Features

Card Removal

When a card is removed from a socket, the PD67XX by default automatically disables the VCC and

VPP supplies to the socket. If Extension Control 1 register bit 1 is ‘0’, card power is prevented

from being automatically disabled when a card is removed. The PD67XX can also be configured to

have management interrupts notify software of card removal.

Card Insertion

Power to the socket is off at reset and whenever there is no card in a socket. When a card is

detected (card detect input pins, -CD1 and -CD2, to the PD67XX become asserted low), two

independent actions can be programmed to occur.

If the PD67XX has been set for automatic power-on (Power Control register bits 4 and 5 are both

‘1’), the PD67XX automatically enables the socket VCC supply (and, if so programmed, the VPP

supply).

If the PD67XX has been programmed to cause management interrupts for card-detection events,

assertion of -CD1 and -CD2 to the PD67XX causes a management interrupt to inform system

software that a card was inserted. In the case of manual power detection (Power Control register

Table 8.

PD67XX Power-Management Modes

Mode Name

PWRGOOD

Level

AEN

Misc Control 2 Register

Functionality

Typical Power

Consumption

(CORE_VDD =

3.3 V,

ISA_VCC,

SOCKET_VCC, and

+5V = 5.0 V)

Suspend

Mode

(Bit 2)

Low-Power

Dynamic

Mode

(Bit 1)

Low-Power

Dynamic

(Default)

High

Normal

Full functionality

< 45 mW high activity,

9–14 mW normal

system activity

Normal

High

Normal

Full functionality

< 85 mW high activity,

18 mW normal

system activity

Suspend

(Software

Controlled)

High

Normal

–

8-bit access to Misc

Control 2 register.

No other register

access. No card in

socket(s).

< 2 mW

Super-Suspend

(Hardware

Controlled)

High

Static

High

–

No register access.

No card in socket(s).

System bus signals

disabled (clock off).

< 1 mW

Reset

Low1

––

–

No register access.

No card in socket(s).

System bus signals

disabled.

9–14 mW

1. IOR*, IOW*, MEMR*, and MEMW* must be held high when PWRGOOD is low to prevent manufacturing test mode outputs

from driving the system data bus

PD6710 Datasheet(PDF) 34 Page - Intel Corporation

PD6710 Datasheet(HTML) 34 Page - Intel Corporation

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL