MSM60804 Datasheet, PDF (12/53 Pages) OKI electronic componets – PCMCIA Host Adapter

¡ Semiconductor
MSM60804
Symbol
Pin ^Drive
I/O
Current
Count (mA)
PCMCIA Card Socket Interface Pins
AA [25 : 0]
TO 52
2
BA [25 : 0]
AD [15 : 0]
BD [15 : 0]
ACE1, ACE2
BCE1, BCE2
I/O 32
2
TO 4
2
AREG, BREG
TO 2
2
AIOW, BIOW
TO 2
2
AIOR, BIOR
TO 2
2
AWE, BWE
TO 2
2
AOE, BOE
TO 2
2
ARST, BRST
TO 2
2
AVSS1, AVSS0
I-pu 4
—
BVSS1, BVSS0
Description
Card Address Bus
This bus enables the PCIC to directly access the 64M-byte memory
address space on the card.
Card Data Bus
A bus for transferring 16-bit data to and from the PC card.
Card Enable
These signals enable setting of 8-bit or 16-bit accessing to the PC
card and enable odd-numbered or even-numbered-address bytes.
These signals are combined with A0 to determine a method to access
the PC card. The CE1 or CE2 output is enabled according to the
register setting or IOIS16 setting.
Attribute Memory Select
When this signal is active low, access is limited to Attribute Memory.
When this signal is high, Common Memory Access mode is set.
In Common Memory Access mode, accessing to the I/O PC card is
disabled.
I/O Write
An active-low signal to enable writing data to the PC card's I/O space.
This signal is not available when the REG signal is inactive high.
I/O Read
An active-low signal to enable reading data from the PC card's I/O space.
This signal is not available when the REG signal is inactive high.
Write Enable
An active-low signal to enable writing data in the PC card. This
signal enables writing data in common memory of the memory PC
card when the REG signal is high or in attribute memory of the I/O
PC card or memory PC card when the REG signal is low.
Output Enable
An active-low signal is used to gate control memory read data from
the PC card. When the REG signal is high, this signal enables reading
data from memory of the memory PC card and when the REG signal
is low from attribute memory of the I/O PC card memory PC card.
Card Reset
Active high signals reset the PC cards.
These signals are set by PC IC's register.
Voltage Sense Pins
These signals indicate the voltages required for the PC card.
The values of these signals are reflected to the PCIC register.
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