psd813f1a STMicroelectronics, psd813f1a Datasheet - Page 44

• Manufacturer Part Number: psd813f1a
• Description: Flash In-system Programmable Isp Peripherals For 8-bit Mcus, 5 V
• Manufacturer: STMicroelectronics

PSD813F1A
MCU BUS INTERFACE
The “no-glue logic” PSD MCU Bus Interface block
can be directly connected to most popular MCUs
and their control signals.
Table 15. MCUs and their Control Signals
Note: 1. Unused CNTL2 pin can be configured as CPLD input. Other unused pins (PC7, PD0, PA3-0) can be configured for other I/O func-
44/111
8031
80C51XA
80C251
80C251
80198
68HC11
68HC912
Z80
Z8
68330
M37702M2
2. ALE/AS input is optional for MCUs with a non-multiplexed bus
tions.
MCU
8
8
8
8
8
8
8
8
8
8
8
Data Bus
Width
WR
WR
WR
WR
WR
R/W
R/W
WR
R/W
R/W
R/W
CNTL0
RD
RD
PSEN
RD
RD
E
E
RD
DS
DS
E
CNTL1
PSEN
PSEN
(Note
PSEN
(Note
(Note
(Note
(Note
(Note
(Note
(Note
CNTL2
Key 8-bit MCUs, with their bus types and control
signals, are shown in Table 15. The interface type
is specified using the PSDsoft Express Configura-
tion.
1
1
1
1
1
1
1
1
) (Note
) (Note
) (Note
) DBE
) (Note
) (Note
) (Note
) (Note
(Note
(Note
(Note
PC7
1
1
1
1
1
1
1
1
1
1
) ALE
) ALE
) ALE
) ALE
) ALE
) AS
) (Note
) AS
) AS
) ALE
AS
PD0
2
1
) A0
A0
A4
A0
A0
A0
A0
A0
A0
A0
A0
ADIO0
(Note
A3-A0
(Note
(Note
(Note
(Note
(Note
D3-D0
(Note
(Note
D3-D0
PA3-PA0
1
1
1
1
1
1
1
1
)
)
)
)
)
)
)
)
(Note
(Note
(Note
(Note
(Note
(Note
(Note
D7-D4
(Note
(Note
D7-D4
PA7-PA3
1
1
1
1
1
1
1
1
1
)
)
)
)
)
)
)
)
)