GMS30C7201 Datasheet, PDF (112/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

PCMCIA Interface
Bit Description
3–2 Socket Programming Control bits
11 VppEN2 = 1 VppEN1=1
10 VppEN2 = 1 VppEN1=0
01: VppEN2 = 0 VppEN1=1
00: VppEN2 = 0, VppEN1=0
1
Direct 5V/3.3V Switch enable
VS1 controls the socket power
When this bit is HIGH, then pin VS1controls voltage selection.
If pin VS1 is LOW, Vcc5EN is active.
If pin VS1 is HIGH, Vcc3EN is active
0
Voltage Selection Bit.
This can only be used when bit 1 above is LOW.
0: Vcc5EN is activated if bit 4 is set
1: Vcc3EN is activated if bit 4 is set
Table 10-7: Power and RESETDRV Control Register (Continued)
Card Detect and Global Control Register
The Card Detect and Global Control Register controls the operation of the Host Bus Adapter
(HBA)
Bit Description
5
PC Card Reset.
Setting this bit to 1 activates the RESET signal to the PC. card. The RESET
signal is active until this bit is set to 0.
4
Software Card Detect Interrupt.
If Card Detect Enable bit is set to1 in the Card Change Interrupt
Configuration Register, then writing 1 to S/W card detect bit in the Card
Detect and General Control Register will cause a card detect and status
change interrupt. This interrupt source is set when the PCMCIA Card exits
from the CARD Power Down Mode
3
PC Card Type
0:Memory Card
1: I/O Card
2
IO Card Access Type
0: Accessed I/O address range has 8 bit register
1: Accessed I/O address range has 16 bit register
1
Explicit Write Back Card Status Change Acknowledge bit.
Setting this bit to 1 will require an explicit write back of a ‘1’ to the Status
Change Register bit which indicates an interrupt condition to acknowledge
the interrupt. When this bit is 0 (default value), the Card Status Change
interrupt is acknowledged by reading the Card Status Change Register, and
the register bits are cleared on a read.
0: No write back is required
1: Write back is required
10-12
GMS30C7201 Data Sheet