SyncMOS Technologies International, Inc.
C5H
A9H
AAH
BAH
C8H
C9H
D8H
F4H
F5H
F6H
F7H
IICRxD
IE1
IFR
IP1
T2CON
T2MOD
P4
ISPFAH
ISPFAL
ISPFD
ISPC
00H
00
00
00
00H
******00
****1111
00H
00H
00H
0*0***00
FA15
FA7
FD7
START
FA14
FA6
FD6
FA13
FA5
FD5
FAU0
FA12
FA4
FD4
TF2
*
EXF2
*
RCLK
*
TCLK
*
EXEN2
*
P4.3
FA11
FA3
FD3
TR2
*
P4.2
FA10
FA2
FD2
IICRxD7
IICRxD6
IICRxD5
IICRxD4
IICRxD3
IICRxD2
EIIC
IICF
SM59128
IICRxD1
IICRxD0
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
PIIC
C/T2
T2OE
P4.1
FA9
FA1
FD1
F1
CP/RL2
DCEN
P4.0
FA8
FA0
FD0
F0
Extension Function Description
1. Memory Structure
The SM59128 has the general 8052 hardware core integration of expanded 768 bytes data RAM and 128K bytes flash.
The 128K bytes on-chip flash is divided in two 64K bytes program memory space.
1.1 Program Memory
The SM59128 has two 64K bytes on-chip flash memory space as general program memory denoted by bank0 and
bank1. Both bank0 and bank1 have up to 4K bytes specific ISP service program memory space. The address range of
the 128K bytes is from $0000H to $1FFFFH, the total available ISP service program space is from $F000H to $FFFFH
in bank0 and $1F000H to $1FFFFH in bank1. The ISP service program size can be partitioned to N blocks of 512 bytes
(N=0 to 8). When N=0 means no ISP service program space is available, total 128K bytes flash memory space is for
main program. When N=1 means memory address $FE00H to $FFFFH and $1FE00H to $1FFFFH are reserved for
ISP service program. When N=2 means memory address $FC00H to $FFFFH and $1FC00H to $1FFFFH are reserved
for ISP service program...etc. User is able to select and program the number of N by writer.
The feature of FLASH memory is shown as following:
READ:
byte-wise
WRITE:
byte-wise within 30us (previously erased by a chip erase).
ERASE:
Full Erase (64K bytes) within 2 sec.
Erased bytes contain FFH
Endurance :
100K erase and write cycles each byte at TA=25℃
Retention :
10 years
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 space when the chip is protected.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
8
06/2009
SYNCMOS [ SYNCMOS TECHNOLOGIES,INC ]
