hb288032c6 Renesas Electronics Corporation., hb288032c6 Datasheet - Page 17

• Manufacturer Part Number: hb288032c6
• Description: Compactflash? 256 Mbyte/192 Mbyte/160 Mbyte/128 Mbyte 96 Mbyte/64 Mbyte/32 Mbyte
• Manufacturer: Renesas Electronics Corporation.

2. Configuration and Status register (Address 202H)
This register is used for observing the card state.
bit7
CHGED
Note: initial value: 00H
Name
CHGED
(CARD->)
SIGCHG
(HOST->)
IOIS8
(HOST->)
PWD
(HOST->)
INTR
(CARD->)
bit6
SIGCHG
R/W
R
R/W
R/W
R/W
R
Function
This bit indicates that CRDY/-BSY bit on Pin Replacement register is set to "1". When
CHGED bit is set to "1", -STSCHG pin is held "L" at the condition of SIGCHG bit set to
"1" and the card 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 CHGED bit. If this bit is set to "0", -STSCHG pin is kept
"H".
The host sets this field to "1" when it can provide I/O cycles only with on 8-bit data bus
(D7 to D0).
When this bit is set to "1", the card enters sleep state (Power Down mode). When this
bit is reset to "0", the card transfers to idle state (active mode). RRDY/-BSY bit on Pin
Replacement Register becomes BUSY when this bit is changed. RRDY/-BSY 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 indicates 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 -IEN bit in the Device Control Register, this bit is a zero.
bit5
IOIS8
bit4
0
HB288256/192/160/128/096/064/032C6
bit3
0
bit2
PWD
bit1
INTR
bit0
0
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