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PSD833F2 Fiches technique(PDF) 61 Page - STMicroelectronics

No de pièce PSD833F2
Description  Flash in-system programmable (ISP) peripherals for 8-bit MCUs, 5 V
PDF  128 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD833F2 Fiches technique(HTML) 61 Page - STMicroelectronics

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PSD8XXFX
MCU bus interface
Doc ID 7833 Rev 7
61/128
15.4
MCU bus interface examples
Figure 20, Figure 21, Figure 22, Figure 23, and Figure 24 show examples of the basic
connections between the PSD and some popular MCUs. The PSD Control input pins are
labeled as to the MCU function for which they are configured. The MCU bus interface is
specified using the PSDsoft Express Configuration.
Figure 19.
An example of a typical 8-bit non-multiplexed bus interface
Table 18.
8-bit data bus
BHE
A0
D7-D0
X
0
Even byte
X
1
Odd byte
MCU
WR
RD
BHE
ALE
RESET
D [ 7:0]
A[ 15:0]
A[ 23:16]
D [ 7:0]
ADIO
PORT
PORT
A
PORT
B
PORT
C
WR (CNTRL0)
RD (CNTRL1)
BHE (CNTRL2)
RST
ALE (PD0)
PORT D
(OPTIONAL)
PSD
AI02879C



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