PSD813F1-A View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'PSD813F1-A' PDF : 120 Pages View PDF
Preliminary
Table 5.
PSD813F1
Pin
Descriptions
(cont.)
PSD813F1-A
Pin Name Pin* Type
CNTL2
49 I
Reset
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
48 I
29 I/O
28
27
25
24
23
22
21
PB0
7 I/O
PB1
6
PB2
5
PB3
4
PB4
3
PB5
2
PB6
52
PB7
51
PC0
20 I/O
PC1
19 I/O
Description
This port can be used to input the PSEN (Program Select
Enable) signal from any MCU that uses this signal for code
exclusively. If your MCU does not output a Program Select
Enable signal, this port can be used as a generic input. This
port is connected to the PLDs.
Active low reset input. Resets I/O Ports, PLD Micro⇔Cells
and some of the configuration registers. Must be active at
power up.
These pins make up Port A. These port pins are configurable
and can have the following functions:
1. MCU I/O — write to or read from a standard output or
input port.
2. CPLD Micro⇔Cell (McellAB0-7) outputs.
3. Inputs to the PLDs.
4. Latched address outputs (see Table 6).
5. Address inputs. For example, PA0-3 could be used for
A[0:3] when using an 80C51XA in burst mode.
6. As the data bus inputs D[0:7] for non-multiplexed
address/data bus MCUs.
7. D0/A16-D3/A19 in M37702M2 mode.
8. Peripheral I/O mode.
Note: PA0-3 can only output CMOS signals with an option
for high slew rate. However, PA4-7 can be configured as
CMOS or Open Drain Outputs.
These pins make up Port B. These port pins are configurable
and can have the following functions:
1. MCU I/O — write to or read from a standard output or
input port.
2. CPLD Micro⇔Cell (McellAB0-7 or McellBC0-7) outputs.
3. Inputs to the PLDs.
4. Latched address outputs (see Table 6).
Note: PB0-3 can only output CMOS signals with an option
for high slew rate. However, PB4-7 can be configured as
CMOS or Open Drain Outputs.
PC0 pin of Port C. This port pin can be configured to have
the following functions:
1. MCU I/O — write to or read from a standard output or
input port.
2. CPLD Micro⇔Cell (McellBC0) output.
3. Input to the PLDs.
4. TMS Input** for the JTAG Interface.
This pin can be configured as a CMOS or Open Drain output.
PC1 pin of Port C. This port pin can be configured to have
the following functions:
1. MCU I/O — write to or read from a standard output or
input port.
2. CPLD Micro⇔Cell (McellBC1) output.
3. Input to the PLDs.
4. TCK Input** for the JTAG Interface.
This pin can be configured as a CMOS or Open Drain output.
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