spd6722qcce Intel Corporation, spd6722qcce Datasheet - Page 34

• Manufacturer Part Number: spd6722qcce
• Description: Isa-to-pc-card Pcmcia Controllers
• Manufacturer: Intel Corporation

PD6710/’22 — ISA-to-PC-Card (PCMCIA) Controllers
4.1.9
34
Super-Suspend
1. IOR*, IOW*, MEMR*, and MEMW* must be held high when PWRGOOD is low to prevent manufacturing test mode outputs
Mode Name
Low-Power
Controlled)
Controlled)
(Hardware
from driving the system data bus
(Software
Table 8.
Dynamic
Suspend
(Default)
Normal
Reset
PD67XX Power-Management Modes
Socket Power Management Features
Card Removal
When a card is removed from a socket, the PD67XX by default automatically disables the V
V
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 V
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
PP
PWRGOOD
supplies to the socket. If Extension Control 1 register bit 1 is ‘0’, card power is prevented
Level
Low
High
High
High
High
1
Normal
Normal
Normal
Static
AEN
High
–
Suspend
Misc Control 2 Register
(Bit 2)
Mode
0
0
1
1
–
Low-Power
Dynamic
(Bit 1)
Mode
–
1
0
–
–
CC
supply (and, if so programmed, the V
Full functionality
Full functionality
8-bit access to Misc
Control 2 register.
No other register
access. No card in
socket(s).
No register access.
No card in socket(s).
System bus signals
disabled (clock off).
No register access.
No card in socket(s).
System bus signals
disabled.
Functionality
< 45 mW high activity,
9–14 mW normal
system activity
< 85 mW high activity,
18 mW normal
system activity
< 2 mW
< 1 mW
9–14 mW
SOCKET_VCC, and
(CORE_VDD =
Typical Power
Consumption
+5V = 5.0 V)
ISA_VCC,
3.3 V,
Datasheet
CC
PP
and