NAND08GAH0A NUMONYX [Numonyx B.V], NAND08GAH0A Datasheet - Page 89

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

NAND08GAH0A, NAND16GAH0D
10.4.4
Figure 32. SPI Single Block Write operation
Figure 33. SPI Multiple Block Write operation
Data in
Data out
from host
to card
Data Write
The SPI mode supports single block and Multiple Block Write commands. Upon reception of
a valid write command (CMD24 or CMD25), the device responds with a response token and
waits for the host to send a data block. The CRC suffix, block length and start address
restrictions are (with the exception of the CSD parameter WRITE_BL_PARTIAL controlling
the partial block write option) identical to the read operation (see
is detected it is reported in the data-response token and the data block is programmed.
Every data block has a ‘Start block’ token prefix of one byte.
After receiving a data block, the device responds with a data-response token. If the data
block has been received without errors, it is programmed. As long as the device is busy
programming, a continuous stream of busy tokens is sent to the host (effectively holding the
DataOut line Low).
In Multiple Block Write operations the host stops the transmission by sending the ‘Stop tran’
token instead of the ‘Start block’ token at the beginning of the next block.
Two types of Multiple Block Write transactions, identical to the Multiple Block Read, are
defined (the host can use either of them at any time):
Open-ended Multiple Block Write
The number of blocks for the Multiple Block Write operation is not defined. The device
accepts and programs all received data blocks until it receives a ‘Stop tran’ token.
Multiple Block Write with pre-defined block count
The device accepts the requested number of data blocks and then terminates the
transaction. The ‘Stop tran’ token is not required at the end of this type of Multiple Block
Write operation, unless the operation is terminated with an error. In order to start a Multiple
Data in
Data out
command
to host
from
card
response
from host
to card
command
Block
token
Start
data block
from card
to host
data from
response
to card
host
data response busy
token
block
Start
data block
from card
response
and busy
data from host
data
to card
Block
token
Start
data response busy
data block
Serial peripheral interface (SPI) mode
data response
and busy from
card to host
data from
to card
data response busy
host
Figure
new command
command
from host
token to card
Stop Tran
29). If a CRC error
ai08354b
busy
ai08355b
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