AMC7823 Datasheet, PDF (22/48 Pages) Texas Instruments – ANALOG MONITORING AND CONTROL CIRCUIT

AMC7823
SLAS453A – APRIL 2005 – REVISED OCTOBER 2005
READ OPERATION
RECEIVING
COMMAND
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WRITE OPERATION
(1)
[ADR] = [SADR]
Yes
READ ?
No
[ADR] = [SADR]
(1)
READ DATA
WRITE DATA
[ADR] + 1
(3)
Is SS deactivated?
Yes
[ADR] + 1
(3)
Yes
Is SS deactivated?
No
(2)
No
[ADR] > [EADR]
Send
Output
0x0000
No
(2)
[ADR] > [EADR]
No
Yes
Ignore any
remaining data
Waiting for new
command
(1) [SADR] represents the start address, which is specified by bits [PG1:PG0] and [SADR4:SADR0] in the command
word. [ADR] represents the current address.
(2) [EADR] represents the end address, which is specified by bits [PG0:PG1] and [EADR4:EADR0] in the command
word.
(3) Host ends data transfer by deactivating SS.
Figure 40. READ/WRITE Operation
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