參數(shù)資料
型號： MF0090M-03ATxx
廠商： Mitsubishi Electric Corporation
英文描述： ER 26C 26#16 SKT RECP
中文描述： null8/16-bit數(shù)據(jù)總線閃存阿拉木圖PC卡
文件頁數(shù)： 10/29頁
文件大?。?/td> 841K
代理商： MF0090M-03ATXX
MITSUBISHI STORAGE CARD
ATA PC CARDS
MITSUBISHI
ELECTRIC
10
1997.Nov. Rev. 1.2
Configuration Register Specifications
Configuration Option Register
This register is used for the configuration of the card
configuration status and for the issuing soft reset to the
card.
D7
D6
D5
D4
D3
D2
D1
D0
SRESET
LevIREQ
Index
Name
SRESET
R/W
R/W
Description
Setting this bit to “1”, places the card in the reset
state. When the host returns this bit to “0”, the
function shall enter the same unconfigured,
reset state as the card does following a power-
up and hardware reset.
If this bit is set to “0”, card generates pulse
mode interrupt. If this bit is set to “1”, card
generates level mode interrupts.
This bits is used for select operation mode of the
card as follows.
When Power on, Card Hard Reset and Soft
reset, this data is “000000” for the purpose of
Memory card interface recognition.
Index: 0 -> Memory mapped
1 -> Contiguous I/O mapped
2 -> Primary I/O mapped
3 -> Secondary I/O mapped
LevIREQ
R/W
Index
R/W
Configuration and Status Register
This register is used for observing the card state.
D7
D6
D5
Iois8
D4
0
D3
0
D2
D1
Intr
D0
0
Changed
SigChg
PwrDwn
Name
Changed
R/W
R/O
Description
This bit indicates that CREADY bit on the Pin
Replacement register is set to “1”. When
Changed bit is set to “1”, STSCHG# pin is held
“L” if the SigChg bit is “1” and the card is
configured for the I/O interface.
This bit is set or reset by the host for enabling
and disabling the status change
signal(STSCHG# pin). When the card is
configured I/O card interface and this bit is set
to “1”, STSCHG# pin is controlled by Changed
bit. If this bit is set to “0”, STSCHG# pin is kept
“H”.
This card is always configured for both 8-bit
and 16-bit I/O, so this bit is ignored.
When this bit is set to “1”, the card enters
Power Down mode. When this bit is reset to
“0”, the host is requesting the card to enter the
active mode. RREADY bit on Pin Replacement
Register becomes BUSY when this bit is
changed. RREADY will not become Ready until
the power state requested has been entered.
This card automatically powers down when it is
idle, and powers back up when it receives a
command.
This bit represents the internal state of the
interrupt request. This bit state is available
whether I/O card interface has been configured
or not. This signal remains true until the
condition which caused the interrupt request
has been serviced. If interrupts are disabled by
the nIEN bit in the Device Control Register, this
bit is a zero.
SigChg
R/W
Iois8
R/W
PwrDwn
R/W
Intr
R/W
Pin Replacement Register
This register is used for providing the signal state of
READY signal when the card configured I/O card
interface.
D7
0
D6
0
D5
D4
0
D3
1
D2
1
D1
D0
0
CREADY
RREADY
Name
CREADY
R/W
R/W
Description
This bit is set to “1” when the RREADY bit
changes state. This bit may also be written by
the host.
When read, this bit indicates READY pin
states. When written, this bit acts as a mask
for writing the CREADY bit.
RREADY
R/W
Socket and Copy Register
This register is used for identification of the card from the
other cards. Host can read and write this register. This
register should be set by host before this card’s
Configuration Option register set.
D7
0
D6
D5
D4
D3
D2
D1
D0
Copy Number
Socket Number
Name
R/W
R/W
Description
Copy Number
This bit indicates the drive number of the
card for twin card configuration.
And the host can select and drive one card
by comparing the number in this field with
the drive number of Drive Head Register.
In the way, the host can perform the card’s
master/slave organization.
This field indicates to the card that it is
located in the n’th socket.
Socket
Number
R/W
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