SM59264_06 Datasheet, PDF (6/36 Pages) SyncMOS Technologies,Inc – 8-Bits Micro-controller with 128KB flash & 1KB RAM & TWSI & SPWM embedded

SyncMOS Technologies International, Inc.
SM59264
8-Bits Micro-controller
with 128KB flash & 1KB RAM & TWSI & SPWM embedded
C5H TWSIRxD 00H TWSIRxD7 TWSIRxD6 TWSIRxD5 TWSIRxD4 TWSIRxD3 TWSIRxD2 TWSIRxD1 TWSIRxD0
A9H
IE1
00
ETWSI
AAH
IFR
00
TWSIF
BAH
IP1
00
PTWSI
C8H T2CON
00H
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
CP/RL2
C9H T2MOD ******00
*
*
*
*
*
*
T2OE
DCEN
D8H
P4
****1111
P4.3
P4.2
P4.1
P4.0
F4H ISPFAH
00H
FA15
FA14
FA13
FA12
FA11
FA10
FA9
FA8
F5H ISPFAL
00H
FA7
FA6
FA5
FA4
FA3
FA2
FA1
FA0
F6H ISPFD
00H
FD7
FD6
FD5
FD4
FD3
FD2
FD1
FD0
F7H ISPC 0*0***00 START
FAU0
F1
F0
Extension Function Description
1. Memory Structure
The SM59264 is the general 8052 hardware core to integrate the expanded 768 byte data RAM, 64KB flash program
memory with ISP function module and 64KB data flash as a single chip micro controller. Its memory structure follows
general 8052 structure plus SM59264 proprietary external RAM structure.
1.1 Program Memory
The SM59264 has 64K byte on-chip flash memory which used as general program memory, on which include up to 4K
byte specific ISP service program memory space. The address range for the 64K byte is $0000 to $FFFF. The address
range for the ISP service program is $F000 to $FFFF. The ISP service program size can be partitioned as N blocks of
512 byte (N=0 to 8). When N=0 means no ISP service program space available, total 64K byte memory used as
program memory. When N=1 means memory address $FE00 to $FFFF reserved for ISP service program. When N=2
means memory address $FC00 to FFFF reserved for ISP service program,...etc. Value N can be set and programmed
into SM59264 by writer.
1.1.1 Program Code Security
MOVC instruction executed from external program memory space will not be able to fetch internal codes from on chip
program memory after the chip is protected on the Writer.
Specifications subject to change without notice contact your sales representatives for the most recent information.
6
Ver 2.1 SM59264 08/2006