PSD813F2VA-15MI STMicroelectronics, PSD813F2VA-15MI Datasheet - Page 45
PSD813F2VA-15MI
Manufacturer Part Number
PSD813F2VA-15MI
Description
Manufacturer
STMicroelectronics
Datasheet
1.PSD813F2VA-15MI.pdf
(109 pages)
Specifications of PSD813F2VA-15MI
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Temperature Classification
Industrial
Package Type
PQFP
Mounting
Surface Mount
Pin Count
52
Lead Free Status / Rohs Status
Compliant
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Manufacturer
Quantity
Price
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PSD Interface to a Non-Multiplexed 8-Bit Bus
Figure
MCU with an 8-bit non-multiplexed bus and a
PSD. The address bus is connected to the ADIO
Port, and the data bus is connected to Port A. Port
A is in tri-state mode when the PSD is not ac-
cessed by the MCU. Should the system address
bus exceed sixteen bits, Ports B, C, or D may be
used for additional address inputs.
Data Byte Enable Reference
MCUs have different data byte orientations. Table
17
ations in different bus WRITE configurations.
Even-byte refers to locations with address A0
equal to '0' and odd byte as locations with A0 equal
to ’1.’
Figure 20. An Example of a Typical 8-bit Non-Multiplexed Bus Interface
shows how the PSD interprets byte/word oper-
20
RESET
MCU
shows an example of a system using a
BHE
ALE
WR
RD
A [ 15:0 ]
D [ 7:0 ]
Doc ID 10552 Rev 3
PSD
WR ( CNTRL0 )
RD ( CNTRL1 )
BHE ( CNTRL2 )
RST
ALE ( PD0 )
PORT D
PORT
ADIO
MCU Bus Interface Examples
Figure
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 PSD-
soft Express Configuration.
Table 17. Eight-Bit Data Bus
BHE
21
X
X
through
PORT
PORT
PORT
A
B
C
25
PSD813F2V, PSD854F2V
show examples of the basic
A0
0
1
D [ 7:0 ]
(OPTIONAL)
A [ 23:16 ]
Even Byte
Odd Byte
D7-D0
AI02879C
45/109
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