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7733 Datasheet(PDF) 337 Page - Renesas Technology Corp

Part # 7733
Description  16-BIT SINGLE-CHIP MICROCOMPUTER
PDF  940 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7733 Datasheet(HTML) 337 Page - Renesas Technology Corp

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CONNECTING EXTERNAL DEVICES
7733 Group User’s Manual
12–12
Fig. 12.1.7 Operating waveform examples of signals which are input to or output from the
external (2)
q When external data bus is 8 bits wide (BYTE = “H” )
<8/16-bit data access>
Note: When 16-bit data is accessed, the low-order 8 bits of data are accessed first, and then,
the high-order 8 bits are accessed.
E
(f) Access starting from odd address
ALE
A0 to A7
BHE
A0
A8 to A15
A16/D0 to A23/D7
E
(e) Access starting from even address
ALE
A0 to A7
Address
BHE
A0
A8 to A15
A16/D0 to A23/D7
Data
8-bit data access
16-bit data access
8-bit data access
16-bit data access
Address
Address
Address
Address
Address
Data
Address
Address
Address
Address
Address
Address
Data
Data
12.1 Signals required for accessing external devices



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