RB5C396 View Datasheet(PDF) - RICOH Co.,Ltd.
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RB5C396 Datasheet PDF : 93 Pages
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RF5C296/RF5C396L/RB5C396/RF5C396
7. Plural Slots System
7.1 Up to 4 slots
As described before, the settings of bit7 and bit6 (Slot bit) in the Index Register depend on the status of the
SPKROUT# pin for the RF5C396 or the RI_OUT# pin for the RF5C296 and on the status of the the SPKROUT# pin
for the RF5C296, respectively, at the falling edge of the RESETDRV pin signal. Therefore, 4 slots system can be con-
structed using plural RF5C296/RF5C396's without modifying I/O address (3E0h, 3E1h)
1-slot system : one RF5C296
2-slot system : one RF5C396 or two RF5C296
3-slot system : one RF5C396 and one RF5C296, or three RF5C296
4-slot system : two RF5C396, or one RF5C396 and two RF5C296, or four RF5C296
The following tables show the relation between the index range and the status of SPKROUT# and RI-OUT# when
RESETDRV falls.
• RF5C296
RI_OUT#
VDD
VDD
GND
GND
SPKROUT#
VDD
GND
VDD
GND
Device bit
0
0
1
1
Slot bit
0
1
0
1
Index Range
00 to 3Fh
40 to 7Fh
80 to BFh
C0 to EFh
• RF5C396
SPKROUT#
VDD
VDD
GND
GND
Device bit
0
0
1
1
Slot bit
0
1
0
1
Index Range
00 to 3Fh
40 to 7Fh
80 to BFh
C0 to EFh
Notice
Access to any other index range than is specified at power-on is invalidated while any attempt to read the Index
Register results in a data bus output of high impedance.
7.2 Five or More Slots
More than five PC card slots can also be supported through external decoding of the A15 to A1 pin signals for
input to the CS# pin and thereby setting of any given I/O addresses of the internal registers for the RF5C296 and
the RF5C396.
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