Figure 5. Mode 0 Write Cycle
MODE
ADDR
DATA
Data
Addr
High Address = 80 Hex
ALE
CS
Clock
WR
Data write in the internal register
In Fig. 6 are represented the signals to readout the internal register of AT7908E in
mode 0
Figure 6. Mode 0 Read Cycle
MODE
Data
ADDR
DATA
Addr
ALE
CS
HIGH ADDRESS = 80 Hex
RD
In mode 0, the internal registers of the AT7908E are mapped between 8000 Hex and
804C Hex and the lowest 8-bit address are multiplexed with the data.
18
AT7908E
4268D–AERO–11/09