psd935g2 STMicroelectronics, psd935g2 Datasheet - Page 36

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

PGR0 -PGR7
I /O PORTS (PORT A,B,C,F)
A [ 15:0 ]
PD [ 3:0 ] (ALE,CLKIN,CSI)
PDN (APD OUTPUT)
CNTRL [ 2:0 ] ( READ/WRITE CONTROL SIGNALS)
RESET
RD_BSY
*
NOTES: 1. The address inputs are A[19:4] in 80C51XA mode.
*
2. Additional address lines can be brought into PSD via Port A, B, C, C or F.
(INPUTS)
(32)
(16)
(8)
(4)
(1)
(3)
(1)
(1)
3
3
3
3
3
3
3
3
3
3
3
3
3
3
RS0
CSIOP
FA15
CSBOOT 0
CSBOOT 1
CSBOOT 2
CSBOOT 3
FS0
FS7
SRAM SELECT
MAIN FLASH
ADDRESS INPUT
I/O DECODER
SELECT
4 SECONDARY
FLASH MEMORY
SECTOR SELECTS
8 FLASH MEMORY
SECTOR SELECTS