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PSD4235G2-12UT Datasheet(PDF) 67 Page - STMicroelectronics

Part # PSD4235G2-12UT
Description  Flash in-system programmable (ISP) peripherals for 16-bit MCUs (3.3 V supply)
PDF  124 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

PSD4235G2-12UT Datasheet(HTML) 67 Page - STMicroelectronics

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MCU bus interface
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18.4
MCU bus interface examples
Figure 20 to Figure 25 show examples of the basic connections between the PSD4235G2V
and some popular MCUs. The PSD4235G2V Control input pins are labeled as to the MCU
function for which they are configured. The MCU bus interface is specified using PSDsoft
Express.
Table 35.
16-bit data bus with WRH and WRL
WRH
WRL
D15-D8
D7-D0
0
0
Odd Byte
Even Byte
0
1
Odd Byte
—
10
—
Even Byte
Table 36.
16-bit data bus with SIZ0, A0 (Motorola MCU)
SIZ0
A0
D15-D8
D7-D0
0
0
Even Byte
Odd Byte
1
0
Even Byte
—
1
1
—
Odd Byte
Table 37.
16-bit data bus with LDS, UDS (Motorola MCU)
WRH
WRL
D15-D8
D7-D0
0
0
Even Byte
Odd Byte
1
0
Even Byte
—
0
1
—
Odd Byte



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