GMS30C7201 Datasheet, PDF (110/352 Pages) Hynix Semiconductor – 60MHz operation frequency Low power consumption

PCMCIA Interface
10.2 Register Description and Map
Interface Status Register (Read Only): Denotes the state of socket status
Note
Bits Description
7
Voltage Sense 2 input status
HIGH=voltage present
6
Voltage Sense 1 input status
HIGH=voltage present
5
RDY/nBSY at Memory only card Interface
0: Busy
1: Ready
In I/O or Mixed Memory and I/O card interfaces this signal indicates the
status of nIREQ pin of the connected card
4
Memory Write Protected at Memory only card interface
0: Not write protected
1: Write Protected
In I/O or Mixed Memory and I/O card interface this signal indicates the
status of nIOIS16 pin of connected card.
(However, nIOIS16 pin is not supported in this specification so, this has no
meaning.)
3–2 Card Detect 2 and Card Detect 1.These bits are asserted simultaneously and
indicate a card is present and is fully seated in the socket.
1
BVD2 Battery Voltage Detect2
In the I/O Card, this denotes the current status of the nSPKR. it does not
show interrupt status. See note.
0
BVD1 Battery Voltage Detect1
In the I/O Card, this denotes the current status of the nSTSCHG/nRI. If the
Ring enable bit is set, it does not show interrupt status.See note.
Table 10-5: Interface Status Register Bits
For bit1–bit0:
00 Battery Dead
01 Battery Warning
10 Battery Dead
11 Battery Good
10-10
GMS30C7201 Data Sheet