psd835g2 STMicroelectronics, psd835g2 Datasheet - Page 66

• Manufacturer Part Number: psd835g2
• Description: Configurable Memory System On A Chip For 8-bit Microcontrollers
• Manufacturer: STMicroelectronics

MCU bus interface
16
Table 11.
1. ALE/AS input is optional for MCUs with a non-multiplexed bus
2. Unused CNTL2 pin can be configured as PLD input. Other unused pins (PD3-PD0, PA3-PA0) can be configured for other
66/120
68HC05C0
M37702M2
8031/8051
I/O functions.
80C51XA
68HC912
68HC11
80C251
80C251
80198
68330
MCU
Z80
Z8
MCU bus interface
The “no-glue logic” MCU Bus Interface block can be directly connected to most popular
MCUs and their control signals. Key 8-bit MCUs, with their bus types and control signals, are
shown in
MCUs and their control signals
.
Data bus width CNTL0 CNTL1 CNTL2
Table
8
8
8
8
8
8
8
8
8
8
8
8
11. The interface type is specified using the PSDsoft.
R/W
R/W
R/W
R/W
R/W
WR
WR
WR
WR
WR
WR
WR
PSEN
RD
RD
RD
RD
RD
RD
DS
DS
E
E
E
PSEN
PSEN
PSEN
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
DBE
PC7
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
PD0
ALE
ALE
ALE
ALE
ALE
ALE
AS
AS
AS
AS
AS
(2)
(1)
ADIO0
A0
A4
A0
A0
A0
A0
A0
A0
A0
A0
A0
A0
PA3-PA0
D3-D0
D3-D0
A3-A0
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
PSD835G2
PA7-PA4
D7-D4
D7-D4
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)
(2)