9

RM24EP

DS-RM24EP–048C–6/2014

Figure 9-1.

Acknowledge Polling Flow

10.

Read Operation

one. There are three types of read operations: Current Address Read, Random Read, and Sequential Read.

10.1

Current Address Read

The device internal address pointer maintains the address of the last word accessed, internally incremented by one.

Therefore, if the previous read access was to address n (any legal address), the next Current Address Read operation

would access data from address n+1. For the 128-Kbit device, if the previous read access was to address 3FFFh, the

incremented address will wrap around to 0000h. For the 64-Kbit device the rollover occurs at address 01FFFh and for the

32-Kbit device the rollover occurs at 0FFFh.

If a Current Address Read is performed after a Byte Write or Page Write, care must be taken to understand that during

the page/byte write command, the address can wrap around within the same page.

data word located at the address of the internal address pointer. The master will not acknowledge the transfer, but does

generate a STOP condition and the device discontinues transmission. See Figure 10-1.

Figure 10-1. Current Address Read