AS39513 datasheet(43/108 Pages) AMSCO

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ams Datasheet

Page 43

[v1-10] 2018-Apr-25

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AS39513 − Detailed Description

The decoding of the address MSBs can discriminate the

addressed memory area as follows:

• EEPROM area with Application or Measurement access

level

If the Address[10] is 0 then the addressed memory are is

EEPROM and the access level is either Application or

Measurement. The boundary between the Application

and Measurement regions is determined by the number

of four-byte memory blocks, APPBLKS parameter,

described later in this section.

• EEPROM area with System or Factory access level

If the Address[10:9] is 2’b10 then the addressed memory

is the upper part of the EEPROM.

If the Address[6] is 0, the access level is System, and if

Address[6] is 1, the access level is Factory.

The Address[8:7] is simply ignored and treated as if those

two bits were 0.

•Registers area with System or Factory access level

If the Address[10:9] is 2’b11, the memory hardware is

registers in the logic.

If the Address[6] is 0, the access level is System, and if the

Address[6] is 1, the access level is Factory.

The Address[7] is ignored and treated as if it were 0.

The section below describes the memory access levels in more

detail. The remaining sections in this chapter describe the

parameters in the System and Factory regions of the memory

map, one 16-byte page at a time.

AS39513 датащи(PDF) 43 Page - ams AG