GMS30C7201 Datasheet, PDF (125/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

PCMCIA Interface
Mode
Card Power Down
Summary
Power removed from card (maximum power saving).
Table 10-34: Power Down Modes (Continued)
10.3.4 Internal register access
The internal register of the interface is accessed directly. That is, no indirect addressing method
is used. The internal address decoder generates the read/write strobe for each register. These
registers are reset by the BnRES signal when the system is power on. Software reset can also
be used when a card is removed from each socket.
10.3.5 Support for compact flash memory
Compact Flash memory Card is supported by the controller. Compact Flash can be supported in
either I/O or Memory interface. But no dedicated true IED interface mode is supported. ATA
Interface can be used to support this type of card. In general, an external interconnection socket
is required because Compact Flash uses 50 pin interface.
10.3.6 General operation flow
Initial State: All Registers reset to default initial value.
Card is not inserted in the socket.
Card Detected: Card is inserted in socket.
Power up sequence is performed (Fully Software Supported) Hardware support is limited to
card’s operating voltage level detect. CIS is read by default state. PCMCIA Spec defines the
default timing and control for CIS Reading Hardware is programmed by using the CIS
information (Memory only Card or Memory or IO Card).
normal operation: Card Access is performed.
Access timing control is done by ATC Register and Card - driven wait signal.
IOIS16
signal is not supported. So, only 16 bit register IO card and 8 bit Register IO Card is supported
Address and Data line uses the EBI (External Bus Interface).
Status Change: Card Status is changed at both type of PCMCIA Card.
Controller informs the status change using Interrupt Status change interrupt. This interrupt can
be masked by using CSIC Register.
Card Removal: All Internal Register is reset.
GMS30C7201 Data Sheet
10-25