psd935g2 STMicroelectronics, psd935g2 Datasheet - Page 39

• Manufacturer Part Number: psd935g2
• Description: Configurable Memory System On A Chip For 8-bit Microcontrollers
• Manufacturer: STMicroelectronics

The
PSD935G2
Functional
Blocks
(cont.)
38
PSD9XX Family
Figure 13. An Example of a Typical 8-Bit Multiplexed Bus Interface
Figure 14. An Example of a Typical 8-Bit Non-Multiplexed Bus Interface
RESET
CONTROLLER
RESET
CONTROLLER
MICRO-
MICRO-
BHE
ALE
WR
RD
BHE
ALE
WR
RD
A [ 15:0 ]
D [ 7:0 ]
AD [ 7:0 ]
A [ 15:8 ]
PSD935G2
WR ( CNTRL0 )
RD ( CNTRL1 )
BHE ( CNTRL2 )
RST
ALE ( PD0 )
PORT D
PORT
ADIO
PSD935G2
WR ( CNTRL0 )
RD ( CNTRL1 )
BHE ( CNTRL2 )
RST
ALE ( PD0 )
PORT D
PORT
ADIO
A,B or
PORT
PORT
PORT
G
F
C
A,B, or
PORT
PORT
PORT
PSD935G2
G
F
C
D [ 7:0 ]
(OPTIONAL)
A [ 23:16 ]
( OPTIONAL )
( OPTIONAL )
( OPTIONAL )
A [ 23:16 ]
A [ 7: 0 ]
A [ 15: 8 ]