SM59264IHHK SYNCMOS [SyncMOS Technologies,Inc], SM59264IHHK Datasheet - Page 8

• Manufacturer Part Number: SM59264IHHK
• Description: 8 - Bit Micro-controller with 128KB flash & 1KB RAM embedded
• Manufacturer: SYNCMOS [SyncMOS Technologies,Inc]

Specifications subject to change without notice,contact your sales representatives for the most recent information.
1.2.1 Data Memory - Lower 128 byte ($00 to $7F, Bank 0 & Bank 1)
Data Memory $00 to $FF is the same as 8052.
The address $00 to $7F can be accessed by direct and indirect addressing modes.
Address $00 to $1F is register area.
Address $20 to $2F is memory bit area.
Address $30 to $7F is for general memory area.
1.2.2 Data Memory - Higher 128 byte ($80 to $FF, Bank 2 & Bank 3)
The address $80 to $FF can be accessed by indirect addressing mode or by bank mapping direct addressing mode.
Address $80 to $FF is data area.
1.2.3 Data Memory - Expanded 768 bytes ($0000 to $02FF, Bank 4 ~ Bank 15)
From external address $0000 to $02FF is the on-chip expanded RAM area, total 768 bytes. This area can be accessed by
external direct addressing mode (by instruction MOVX) or by bank mapping direct addressing mode as described below:
1.3 Bank mapping direct addressing mode
We provide RAM bank address ‘40H~7FH’ as mapping window which allow user access all the 1K on-chip RAM through
this RAM bank address.
80
7F
00
FF
Note: External RAM address structure for reading the on-chip data flash.
Lower 128 bytes
Higher 128 bytes
SyncMOS Technologies Inc.
May 2002
SFR
FF
00
On-chip Expanded
768 byte RAM
(OME=1)
internal RAM
:
8/32
02FF
0000
internal data flash
(Can be read by
MOVX instruction)
On-chip data flash
as External RAM
(OME=0)
(Can be read by
MOVX instruction)
On-chip data flash
as External RAM
(DFEN = 1)
DFEN = 1
FFFF
02FF
0000
Ver 1.0
64K bytes
addressing
space
PID 59264 05/02
SM59264