NAND08GAH0A NUMONYX [Numonyx B.V], NAND08GAH0A Datasheet - Page 25

• Manufacturer Part Number: NAND08GAH0A
• Manufacturer: NUMONYX [Numonyx B.V]

NAND08GAH0A, NAND16GAH0D
5.2
5.2.1
Table 10.
Card Identification mode
When in Card Identification mode, the host resets the device, validates the operating voltage
range and the access mode, identifies the device and assigns a Relative Card Address
(RCA) to it.
In Card Identification mode all data communications are performed using only the command
line (CMD).
Card reset
After power-up, the device is in Idle state and defaults to operate in MultiMediaCard mode,
even if it was previously in the Inactive state.
The GO_IDLE_STATE (CMD0) command performs a software reset and puts the device in
Idle state. It is also used to switch the device into SPI mode (see
peripheral interface (SPI)
After power-up or a CMD0 command, all outputs are high impedance, and the device is
initialized with a default RCA (0x0001) and default Driver Stage Register (DSR) settings.
The host starts the device identification process in open-drain mode with the clock
frequency set to the identification clock frequency f
CMD0 is valid in all states, with the exception of the Inactive state. While in Inactive state the
device does not accept CMD0 commands unless it is used to switch the device into SPI
mode.
Inactive (ina)
Idle
Ready
Identification (ident)
Standby (stby)
Transfer (tran)
Bus state test (btst)
Sending-data (data)
Receiving-data (rcv)
Programming (pgr)
Disconnect
Wait-IRQ (irq)
M
Device state
Bus modes overview
mode).
Card Identification mode
Data Transfer mode
Operation mode
Interrupt mode
Inactive
OD
High speed MultiMediaCard operation
(see
Table 9: Bus AC
Section 10: Serial
Open-drain
Bus mode
Push-pull
Push-pull
timings).
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