TABLE III Command Table (HEX Data)

First Cycle

Second Cycle

Acceptable Command

During Busy

Sequential Data Input

80

Read Mode (1)

00

Read Mode (2)

50

Reset

FF

Yes

Auto Program

10

Auto Block Erase

60

D0

Suspend in Erasing

B0

Yes

Resume

D0

Status Read

70

Yes

ID Read

90

Bit Assignment of HEX Data

(Example)

TLD11915 – 84

Once the device is set into Read mode by ‘‘00H’’ or ‘‘50H’’ command additional Read commands are not needed for sequential

page read operations Table III shows the operation mode for Reads

TABLE IV Operation Mode for Reads

CLE ALE CE WE RE

Power

Read Mode

L

L

L

H

L

Data Output

Active

Output Deselect

L

L

L

H

H High Impedance Active

Standby

L

L

H

H

High Impedance Standby

Device Operation

READ MODE (1)

The Read mode (1) is set by issuing a ‘‘00H’’ command to the command register Refer to

Figure 2 below for timing details and

block diagram

TLD11915 – 29

TLD11915 – 30

A data transfer operation from the cell array to the register starts at the rising

edge of WE in the third cycle (after latching the address information) The

device will be in a busy state during this transfer period

After the transfer period the device returns to a ready state Serial data can

be output synchronously with the RE clock from the designated starting

pointer indicated during the address input cycle

FIGURE 2 Read Mode (1) Operation

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