SM59264IHHK SYNCMOS [SyncMOS Technologies,Inc], SM59264IHHK Datasheet - Page 7

• 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.
Note: The single flash block address structure for doing the ISP function to the on-chip data flash as well as
1.2 Data Memory
The SM59264 has 1K bytes on-chip RAM, 256 bytes of it are the same as general 8052 internal memory structure while the
expanded 768 bytes on-chip RAM can be accessed by external memory addressing method (by instruction MOVX), or by
‘Bank mapping direct addressing mode’ as described in page 9. The SM59264 also has 64K bytes data flash embedded in.
The contents of data flash can be erased or programmed by software control and can be read by MOVX instruction. User can
use MOVX instruction to access internal RAM, internal data flash or external memory by setting OME and DFEN. The differ-
ent setting of OME and DFEN will map to different memory block.
On-chip expanded RAM address structure.
FF
7F
00
program ROM flash.
80
Higher 128 bytes (Access by
indirect addressing mode only)
Lower 128 bytes (Accessed by
direct & indirect addressing mode)
DFEN
SyncMOS Technologies Inc.
May 2002
0
0
1
1
OME
0
1
0
1
SFR (Accessed by direct
addressing mode only)
address of MOVX below 768
internal data flash
external memory
internal RAM
internal RAM
7/32
80
FF
Expanded 768 bytes RAM
(Accessed by direct external
addressing mode, by instruction
MOVX, or by Bank mapping
direct addressing mode)
address of MOVX over 768
internal data flash
internal data flash
external memory
external memory
Ver 1.0 PID 59264 05/02
SM59264
0000
02FF