BU9833GUL-W ROHM Co. Ltd., BU9833GUL-W Datasheet - Page 9

• Manufacturer Part Number: BU9833GUL-W
• Description: 256?8 Bit Electrically Erasable Prom
• Manufacturer: ROHM Co. Ltd.

◇BYTE WRITE
（Fromμ-COM）
（μ-COM
（IC OUTPUT DATA）
OUTPUT DATA)
SCL
SDA
SDA
・Acknowledge is a software convention used to indicate successful data transfers.
(When inputting the slave address in the write or read operation, transmitter is μ-COM.
・During the ninth clock cycle, the receiver will pull the SDA line LOW to acknowledge
・The device will respond with an Acknowledge after recognition of a START condition
・In the WRITE mode, the device will respond with an Acknowledge, after the receipt o
・In the READ mode, the device will transmit eight bit of data, release the SDA line,
・If an Acknowledge is detected, and no STOP condition is generated by the master,
the device will continue to transmit the data.
If an Acknowledge is not detected, the device will terminate further data transmissions
(See Fig-7 ACKNOWLEDGE RESPONSE FROM RECEIVER)
The transmitter device will release the bus after transmitting eight bits.
When outputting the data in the read operation, it is this device.)
that the eight bits of data has been received.
and its slave address (8bit).
feach subsequent 8-bit word (word address and write data).
and monitor the line for an Acknowledge.
and await a STOP condition before returning to the standby mode.
(When inputting the slave address in the write or read operation, receiver is this
device. When outputting the data in the read operation, it is μ-COM.)
START CONDITION
(START BIT)
Fig.-7 ACKNOWLEDGE RESPONSE FROM RECEIVER
1
REV. A
8
Acknowledge Signal
(ACK Signal)
9
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