SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Product List
Features
SM59128C25, 25MHz 128KB internal flash MCU
SM59128C40, 40MHz 128KB internal flash MCU
z
z
z
z
Description
z
The SM59128 series product is an 8-bit single chip
microcontroller embedded with 128KB on-chip flash with
z
In-System Programming (ISP) capability and
z
1024 bytes RAM. It is a derivative of the 8052 microcontroller
z
family. In addition, SM59128 has IIC interface which is
z
compatible with standard VESA DDC/CI and built in 4-channel z
SPWM. User can access on-chip expanded RAM by its ‘bank
z
mapping direct addressing mode’ scheme. With its hardware
z
features and powerful instruction sets, it’s straight forward to
z
make it a versatile and cost effective controller for those
applications which demand up to 32 I/O pins for PDIP package or z
z
up to 36 I/O pins for PLCC or QFP package, or applications
which need up to 64K bytes flash memory for program and/or for z
z
data.
z
To program the on-chip flash memory, commercial writers are
available by parallel programming method. On the other hand, z
z
the on-chip flash memory can be programmed through either
z
parallel or serial interface with its ISP feature.
z
Ordering Information
z
z
z
yymmv
SM59128ihhkL
z
yy: year, mm: month
v: version identifier{ , A, B,…}
i: process identifier {L=3.0V~3.6V,C=4.5V~ 5.5V}
hh: working clock in MHz {25, 40}
k: package type postfix {as below table}
L: PB Free identifier
{No text is Non-PB Free，”P”is PB Free}
Postfix
P
J
Q
Package
40L PDIP
44L PLCC
44L QFP
Working Voltage: 4.5V to 5.5 V
General 8052 family compatible
12 clocks per machine cycle
128K bytes on-chip flash with In-System Programming
(ISP) capability
IIC (Two wire serial bus) interface compliant with VESA
DDC 2B/2Bi/2B+ standard
On-chip 1024 bytes RAM
Three 16-bit Timers/Counters
One Watch Dog Timer
Four 8-bit I/O ports for PDIP package
Four 8-bit I/O ports + one 4-bit I/O ports for PLCC or
QFP package
Full duplex serial channel
Bit operation instruction
Temperature range of Industrial level
8-bit Unsigned Division
8-bit Unsigned Multiply
BCD arithmetic
Direct Addressing
Indirect Addressing
Nested Interrupt
Two priority level interrupt
A serial I/O port
Power-Saving mode: Idle mode and Power-down
mode
Code protection function
Low EMI (inhibit ALE)
Reset with address $0000 blank initiate ISP service
program
Configurable ISP service program space with N*512
bytes (N=0 to 8) size
z
4-channel SPWM function
z
Flash Memory Endurance : 100K erase and write
cycles each byte at TA=25℃
z
Flash Memory Data Retention :10 years
Taiwan
6F, No.10-2 Li- Hsin 1st Road ,
Science-based Industrial Park,
Hsinchu, Taiwan 30078
Pin / Pad Configuration
Page 2
Page 3
Page 4
TEL: 886-3-567-1820
886-3-567-1880
FAX: 886-3-567-1891
886-3-567-1894
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
1
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Pin Configuration
1
40
VDD
T2EX/P1.1
2
39
P0.0/AD0
SPWM0/P1.2
3
38
P0.1/AD1
SPWM1/P1.3
4
37
P0.2/AD2
SPWM2/P1.4
5
36
P0.3/AD3
SPWM3/P1.5
6
35
P0.4/AD4
SCL/P1.6
7
34
P0.5/AD5
SDA/P1.7
8
33
P0.6/AD6
RESET
9
32
P0.7/AD7
RXD/P3.0
10
31
EA
TXD/P3.1
11
30
ALE
INT0/P3.2
12
29
PSEN
INT1/P3.3
13
28
P2.7/A15
T0/P3.4
14
27
P2.6/A14
T1/P3.5
15
26
P2.5/A13
WR/P3.6
16
25
P2.4/A12
RD/P3.7
17
24
P2.3/A11
XTAL2
18
23
P2.2/A10
XTAL1
19
22
P2.1/A9
VSS
20
21
P2.0/A8
SyncMOS
T2/P1.0
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
2
06/2009
SyncMOS Technologies International, Inc.
SM59128
39
38
P0.3/AD3
P2.7/A15
T0/P3.4
P2.6/A14
T1/P3.5
P2.5/A13
18
19
20
21
22
23
24
25
26
27
28
A12/P2.4
37
P0.2/AD2
INT1/P3.3
A11/P2.3
36
P0.1/AD1
PSEN
A10/P2.2
35
P0.0/AD0
INT0/P3.2
A9/P2.1
34
VDD
ALE
A8/P2.0
TXD/P3.1
33
P4.2
P4.1
P4.0
P4.3
32
P1.0/T2
EA
VSS
RXD/P3.0
31
P1.1/T2EX
P0.7/AD7
XTAL1
RESET
30
P1.2/SPWM0
P0.6/AD6
XTAL2
SDA/P1.7
SCL/P1.6
RD/P3.7
P0.5/AD5
SPWM3/P1.5
WR/P3.6
P0.4/AD4
29
P1.3/SPWM1
40
7
41
8
42
9
43
10
44
11
1
12
2
13
3
14
4
15
5
16
6
17
P1.4/SPWM2
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
3
06/2009
SyncMOS Technologies International, Inc.
SM59128
P0.4/AD4
P0.5/AD5
P0.6/AD6
P0.7/AD7
EA
P4.1
ALE
PSEN
P2.7/A15
P2.6/A14
P2.5/A13
33
32
31
30
29
28
27
26
25
24
23
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
17
P4.0
T2/P1.0
40
16
VSS
T2EX/P1.1
41
15
XTAL1
SPWM0/P1.2
42
14
XTAL2
SPWM1/P1.3
43
13
P3.7/RD
SPWM2/P1.4
44
12
P3.6/WR
11
39
T1/P3.5
P4.2
10
P2.0/A8
T0/P3.4
18
9
38
INT1/P3.3
VDD
8
P2.1/A9
INT0/P3.2
19
7
37
TXD/P3.1
AD0/P0.0
6
P2.2/A10
P4.3
20
5
36
RXD/P3.0
AD1/P0.1
4
P2.3/A11
RESET
21
3
35
SDA/P1.7
AD2/P0.2
2
P2.4/A12
SCL/P1.6
22
1
34
SPWM3/P1.5
AD3/P0.3
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
4
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Block Diagram
Timer 2
Timer 1
Timer 0
Stack
Pointer
Decoder &
Register
1024 Bytes
Ram
Buffer
WDT
ACC
Reset
Circuit
Power
Circuit
Xtal2
Xtal1
#EA
ALE
#PSEN
DPTR
To pertinent blocks
To whole chip
Interrupt
Circuit
To pertinent blocks
Timing
Generator
To whole system
Buffer2
PC
Incrementer
Buffer1
ALU
Timer 2
PSW
Timer 2
Instruction
Register
ISP
Port 0
Latch
Port 1
Latch
Port 2
Latch
Port 3
Latch
Port 4
Latch
SPWM &
IIC
Port 0
Driver &
Mux
Port 1
Driver &
Mux
Port 2
Driver &
Mux
Port 3
Driver &
Mux
Port 4
Driver &
Mux
8
8
8
8
8
1FFFFH
64 K
Bytes
Program
Flash
Bank 1
ISP
10000H
FFFFH
64 K
Bytes
Program
Flash
Bank 0
0000H
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
5
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Pin Description
40L
PDIP
Pin#
44L
QFP
Pin#
44L
PLCC
Pin#
Symbol
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
40
41
42
43
44
1
2
3
4
5
7
8
9
10
11
12
13
14
15
16
18
19
20
21
22
23
24
25
26
27
29
30
31
32
33
34
35
36
37
38
17
28
39
6
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20
21
22
24
25
26
27
28
29
30
31
32
33
35
36
37
38
39
40
41
42
43
44
23
34
1
12
P1.0/T2
P1.1/T2EX
P1.2
P1.3/SPWM0
P1.4/SPWM1
P1.5/SPWM2
P1.6/SCL
P1.7/SDA
RES
P3.0/RXD
P3.1/TXD
P3.2/#INT0
P3.3/#INT1
P3.4/T0
P3.5/T1
P3.6/#WR
P3.7/#RD
XTAL2
XTAL1
VSS
P2.0/A8
P2.1/A9
P2.2/A10
P2.3/A11
P2.4/A12
P2.5/A13
P2.6/A14
P2.7/A15
#PSEN
ALE
#EA
P0.7/AD7
P0.6/AD6
P0.5/AD5
P0.4/AD4
P0.3/AD3
P0.2/AD2
P0.1/AD1
P0.0/AD0
VDD
P4.0
P4.1
P4.2
P4.3
Active
H
L/L/-
L
I/O
Names
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
o
i
bit 0 of port 1 & timer 2 clock out
bit 1 of port 1 & timer 2 control
bit 2 of port 1
bit 3 of port 1 & SPWM channel 0
bit 4 of port 1 & SPWM channel 1
bit 5 of port 1 & SPWM channel 2
bit 6 of port 1 & IIC Bus Clock
bit 7 of port 1 & IIC Bus Data
Reset
bit 0 of port 3 & Receiver data
bit 1 of port 3 & Transmit data
bit 2 of port 3 & low true interrupt 0
bit 3 of port 3 & low true interrupt 1
bit 4 of port 3 & Timer 0
bit 5 of port 3 & Timer 1
bit 6 of port 3 & ext. memory write
bit 7 of port 3 & ext. memory Read
Crystal out
Crystal in
Sink Voltage, Ground
bit 0 of port 2 & bit 8 of ext. memory address
bit 1 of port 2 & bit 9 of ext. memory address
bit 2 of port 2 & bit 10 of ext. memory address
bit 3 of port 2 & bit 11 of ext. memory address
bit 4 of port 2 & bit 12 of ext. memory address
bit 5 of port 2 & bit 13 of ext. memory address
bit 6 of port 2 & bit 14 of ext. memory address
bit 7 of port 2 & bit 15 of ext. memory address
program storage enable
address latch enable
external access
bit 7 of port 0 & data/address bit 7 of ext. memory
bit 6 of port 0 & data/address bit 6 of ext. memory
bit 5 of port 0 & data/address bit 5 of ext. memory
bit 4 of port 0 & data/address bit 4 of ext. memory
bit 3 of port 0 & data/address bit 3 of ext. memory
bit 2 of port 0 & data/address bit 2 of ext. memory
bit 1 of port 0 & data/address bit 1 of ext. memory
bit 0 of port 0 & data/address bit 0 of ext. memory
Drive Voltage, +5 Vcc
bit 0 of Port 4
bit 1 of Port 4
bit 2 of Port 4
bit 3 of port 4
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
o
o
I
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
i/o
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
6
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Special Function Register (SFR)
The address $80 to $FF can be accessed by direct addressing mode only.
Address $80 to $FF is SFR area.
The following table lists the SFR’s, which are identical to general 8052, as well as SM59128 Extension SFR’s.
Special Function Register (SFR) Memory Map
$F8
$F0
$E8
$E0
$D8
$D0
$C8
$C0
$B8
$B0
$A8
$A0
$98
$90
$88
$80
B
ACC
P4
PSW
T2CON
IICS
IP
P3
IE
P2
SCON
P1
TCON
P0
T2MOD
IICA
IP1
RCAP2L
IICC1
IE1
IFR
RCAP2H
IICC2
ISPFAL
TL2
IICTxD
TH2
IICRxD
ISPFD
ISPC
SCONF
SBUF
TMOD
SP
ISPFAH
TL0
DPL
SPWMC
P1CON
SPWMD0
SPWMD1
TL1
DPH
TH0
TH1
RCON
SPWMD2
SPWMD3
WDTC
WDTKEY
PCON
$FF
$F7
$EF
$E7
$DF
$D7
$CF
$C7
$BF
$B7
$AF
$A7
$9F
$97
$8F
$87
Note: The text of SFRs with bold type characters are Extension Special Function Registers for SM59128
Addr
SFR
Reset
7
6
5
4
3
2
1
0
85H
RCON
00H
RAMS7
RAMS6
RAMS5
RAMS4
RAMS3
RAMS2
RAMS1
RAMS0
WDTKEY1
WDTKEY0
PS2
PS1
PS0
97H
WDTKEY
00H
WDTKEY7
WDTKEY6
WDTKEY5
WDTKEY4
WDTKEY3
WDTKEY2
9BH
P1CON
**0000**
IICSDAE
IICSCLE
SPWME3
SPWME2
SPWME1
SPWME0
9FH
WDTC
0*0**000
WDTE
A3H
SPWMC
******00
SPFS1
SPFS0
A4H
SPWMD0
00H
SPWMD04
SPWMD03
SPWMD02
SPWMD01
SPWMD00
BRM02
BRM01
BRM00
A5H
SPWMD1
00H
SPWMD14
SPWMD13
SPWMD12
SPWMD11
SPWMD10
BRM12
BRM11
BRM10
A6H
SPWMD2
00H
SPWMD24
SPWMD23
SPWMD22
SPWMD21
SPWMD20
BRM22
BRM21
BRM20
A7H
SPWMD3
00H
SPWMD34
SPWMD33
SPWMD32
SPWMD31
SPWMD30
BRM32
BRM31
BRM30
BFH
SCONF
0***0000
WDR
BANK
ISPE
OME
ALEI
CLEAR
C0H
IICS
0000*100
RXIF
TXIF
TFIF
NAKIF
C1H
IICA
10100000
IICA7
IICA6
IICA5
IICA4
C2H
IICC1
0***0001
IICE
C3H
IICC2
00H
Match
SRW
C4H
IICTxD
FFH
IICTxD7
IICTxD6
RXAK
MASTER
TXAK
IICA3
IICA2
IICA1
EXT ADDR
Bus Busy
IICFS2
IICFS1
IICFS0
RESTART
IICTxD5
IICTxD4
IICTxD3
MRW
IICTxD2
IICTxD1
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
7
06/2009
IICTxD0
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
C5H
IICRxD
00H
A9H
IE1
IICRxD7
IICRxD6
IICRxD5
IICRxD4
IICRxD3
IICRxD2
00
EIIC
AAH
IFR
00
IICF
IICRxD1
IICRxD0
BAH
IP1
00
C8H
T2CON
00H
TF2
EXF2
RCLK
TCLK
EXEN2
TR2
C/T2
PIIC
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
F1
F0
FAU0
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 Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
64 K Bytes
Program
Flash Bank 1
64 K Bytes
Program
Flash Bank 0
1FFFFH (N=0)
1FE00H (N=1)
1FC00H (N=2)
1FA00H (N=3)
1F800H (N=4)
1F600H (N=5)
1F400H (N=6)
1F200H (N=7)
1F000H (N=8)
ISP service
program space
up to 4K
10000H
FFFFH (N=0)
FE00H (N=1)
FC00H (N=2)
FA00H (N=3)
F800H (N=4)
F600H (N=5)
F400H (N=6)
F200H (N=7)
F000H (N=8)
ISP service
program space
up to 4K
0000H
Note: The single flash block address structure of doing the ISP function for the on-chip data flash as well as program
flash.
BANK
0
1
128K Program Flash
BANK0 (64K Flash)
BANK1 (64K Flash)
ISP Code
ISP Code
64K Bytes
Program Flash
64K Bytes
Program Flash
BANK0
BANK1
Main Code
Main Code
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
9
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
1.2 Data Memory
The SM59128 has 1024 bytes on-chip RAM consists of 256 bytes as same as 8052 internal memory structure and
expanded 768 bytes on-chip RAM that can be accessed by external memory addressing method (by instruction
MOVX), or by ‘Bank mapping direct addressing mode’. User can use MOVX instruction to access internal RAM or
external memory by setting OME. The different setting of OME will map to different memory block.
OME
address of MOVX below 768
address of MOVX over 768
0
external memory
external memory
1
internal RAM
external memory
1.2.1 Data Memory - Lower 128 byte ($00 to $7F)
Data Memory $00 to $FF follow 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 general memory area.
1.2.2 Data Memory - Higher 128 byte ($80 to $FF)
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.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
10
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
1.3 I/O Pin Configuration
The ports 1, 2 and 3 of standard 8051 have internal pull-up resistor, and port 0 has open-drain output. Each I/O pin can
be used independently as an input or an output. When an I/O port used as an input pin, the port bit latch must contain a
‘1’ to turn off the output driver FET. Port 1, 2 and 3 pins are pulled high by a weak internal pull-up, and can be pulled
low by an external source. The port 0 has open-drain output which means its pull-ups are not active during normal port
operation. Writing ‘1’ to the port 0 bit latch will cause bit floating so that it can be used as a high-impedance input.
The port 4 can be used as GPIO has the same function as port 1, 2 and 3.
2. Port 4 for PLCC or QFP package:
The bit addressable port 4 is available with PLCC or QFP package. The port 4 has only 4 pins and port address is
located at 0D8H. The function of port 4 is as same as port 1, port 2 and port 3.
Port4 (P4, $D8)
bit-7
Read / Write:
bit-0
Unused
Unused
Unused
Unused
P4.3
P4.2
P4.1
P4.0
-
-
-
-
R/W
R/W
R/W
R/W
1
1
Reset value:
*
*
*
*
1
1
The bit 3, bit 2, bit 1, bit 0 out put the setting to pin P4.3, P4.2, P4.1, P4.0, respectively.
3. In-System Programming (ISP) Function
The SM59128 can generate flash control signals by internal hardware circuit. User is able to utilize flash control
register, flash address register and flash data register to execute the in-system programming (ISP) function without
removing the SM59128 from system board. The SM59128 provides internal flash control signals for users who would
like to perform on-line data update by utilizing ISP service program to execute the flash program/chip erase/page
erase/protect functions.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
11
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
3.1 ISP Service Program
The ISP service program is a user-develop firmware program, which resides in the ISP service program space that is
reserved by N*512 bytes (N=0 to 8). After user develops the ISP service program, user shall determine the size of the
ISP service program space by setting a fittest N value before programming the ISP program code into the SM59128.
The ISP service program is developed by either IC vendor or user his own, and it shall include the features which relate
to the flash memory programming function as well as communication protocol between SM59128 and host device. For
example, if user utilizes UART interface to receive/transmit data between SM59128 and host device, the ISP service
program shall include baud rate, checksum, parity check or any error-checking mechanism to avoid data transmission
error.
User shall note the ISP service program can be initiated under active or idle mode, cannot be initiated under power
down mode.
3.2 Lock Bit (N)
The Lock Bit, N represents two functions, the first is for service program size configuration and the second is to protect
and prevent the ISP service program space from erase.
The address range for the ISP service program is from $F000H to $FFFFH of bank0 and $1F000H to $1FFFFH of
bank1. It can be divided to blocks of N*512 bytes (N=0 to 8). When N=0 means no ISP space, all of 128K byte flash
memory can be only used as program memory. When N=1 means ISP service program occupies 512 bytes , the rest of
63.5K bytes in both bank0 and bank1 can be used as program memory. The allowed maxima ISP service program
space is 4K bytes (N=8). Under such configuration, the usable program memory space is 60K bytes in each bank.
After the lock bit N is determined, SM59128 will reserve the ISP service program space downward from the top of the
program address $FFFFH of bank0 and $1FFFFH of bank1. The starting address of the ISP service program locates at
$Fx00H and $1Fx00H while x is an even number depending on the lock bit N. Please see page 7 to refer ISP service
program space structure.
The setting of lock bit N is different from the setting of flash protect function. The ISP chip erase function is able to
erase all of the 128KB flash memory space except the locked ISP service program space of bank0 ( Note: The
locked ISP service program space of bank1 will be erased if user executes ISP chip erase function). If SM59128
is not protected, the content of flash data is readable. If SM59128 is protected, the whole flash program memory space
including ISP service program can not be read.
3.3 Program the ISP Service Program
After setting the lock bit N and ISP service program has been programmed, the ISP service program memory will be
protected (locked) automatically. The lock bit N internally is controlled by a specific program/erase timing which is
different from the program/erase timing of flash function. User can erase the locked ISP service program by writer only.
The ISP chip erase function is able to erase all of the 128KB flash memory space except the locked ISP service
program space of bank0 ( Note: The locked ISP service program space of bank1 will be erased if user executes
ISP chip erase function). User can not update any ISP service program code while SM59128 residents on system
board.
3.4 Initiate ISP Service Program
To initiate the ISP service program means to load the program counter (PC) with starting address of ISP service
program and execute. There are three ways to approach:
(1) Blank reset: When Hardware resets and the first address is blank ($0000=#FFH) will automatically load the PC
with starting address of ISP service program and execute.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
12
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
(2) ‘JUMP’ instruction: Load the starting address of the ISP service program to PC and execute.
(3) Hardware setting: User can force SM59128 to enter/execute ISP service program by setting P2.6, P2.7 as “low”
or setting P4.3 as “low” during hardware reset period. User must be careful on setting of P2.6, P2.7 and P4.3
during reset period to prevent SM59128 from accidentally entering ISP service program.
Hardware setting to enter/execute ISP service program:
User can initiate general 8052 UART function to initiate the ISP service program. After ISP service program executed,
user needs to reset the SM59128, either by hardware reset or by WDT, or jump to the address $0000 to re-start the
firmware program.
3.5 ISP Registers - System Control Register (SCONF, $BF)
bit-7
Read / Write:
bit-0
WDTE
Unused
Unused
Unused
BANK
ISPE
OME
ALEI
R/W
-
-
-
R/W
R/W
R/W
R/W
Reset value:
0
*
*
*
0
0
0
0
The bit 2 (ISPE) of SCONF is the bit for ISP enable. User can enable overall ISP function by setting ISPE bit to ‘1’,
setting ISPE to ‘0’ will disable overall ISP function.
The function of ISPE is like a security key. User can disable overall ISP function to prevent user’s software program be
erased accidentally.
3.6 ISP Registers: ISPFAH, ISPFAL, ISPFD and ISPC registers
The ISPFAH & ISPFAL provide the 16-bit flash memory addressing for ISP function. The flash memory address should
not include the ISP service program space address. If the address of ISPFAH & ISPFAL registers overlay the ISP
service program space that is under protection, the ISP function of flash program/page erase can not be executed
effectively. When performing byte program ISP function, the content of ISPFD register will be programmed to the flash
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
13
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
address, which is pointed by ISPFAH and ISPFAL registers.
ISP Registers- Flash Address-High Register (ISPFAH, $F4)
bit-7
Read / Write:
bit-0
FA15
FA14
FA13
FA12
FA11
FA10
FA9
FA8
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
Reset value:
0
0
0
FA15 ~ FA8: flash address (high) for ISP function
ISP Registers - Flash Address-Low Register (ISPFAL, $F5)
bit-7
Read / Write:
bit-0
FA7
FA6
FA5
FA4
FA3
FA2
FA1
FA0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
Reset value:
0
0
0
FA7 ~ FA0: flash address (low) for ISP function
The ISPFAH & ISPFAL provide the 16-bit flash memory addressing for ISP function. The flash memory address should
not include the ISP service program space address. If the address of ISPFAH & ISPFAL registers overlay the ISP
service program space that is under protection, the ISP function of flash program/page erase can not be executed
effectively.
ISP Registers - Flash Data Register (ISPFD, $F6)
bit-7
Read / Write:
bit-0
FD7
FD6
FD5
FD4
FD3
FD2
FD1
FD0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
0
0
0
0
0
Reset value:
0
0
FD7 ~FD0: flash data for ISP function
The ISPFD provides the 8-bit data for ISP function
ISP Registers -Flash Control Register (ISPC, $F7)
bit-7
bit-0
START
Unused
FAU0
Unused
Unused
Unused
ISPF1
ISPF0
Read / Write:
R/W
-
R/W
-
-
-
R/W
R/W
Reset value:
0
*
0
*
*
*
0
0
ISPF [1:0]: ISP function select bit
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
14
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
ISPF [1:0]
ISP function
00
Byte program
01
Chip protect
10
Page erase (512Byte)
11
Chip erase
※The ISP chip erase function is able to erase all of the 128KB
flash memory space except the locked ISP service program space
of bank0 ( Note: The locked ISP service program space of bank1
will be erased if user executes ISP chip erase function).
START: ISP function start bit
= 1: start ISP function which indicated by bit 1, bit 0 (ISPF1, ISPF0)
= 0: no operation
FAU0: 64K program Flash bank select bit (only in ISP mode used)
= 1: selected 64K bank1 flash
= 0: selected 64K bank0 flash
Note: The default START bit is read-only , user’s software must write three specific values 55H, AAH and 55H
sequentially to the ISPFD register to enable the START bit write attribute. That is:
MOV ISPFD, #55H
MOV ISPFD, #0AAH
MOV ISPFD, #55H
After START bit is set to 1 then the SM59128 hardware circuit will latch flash address and data bus and hold the
program counter until the START bit reset to 0 when ISP function was finished. The program counter (PC) will point to
next instruction after START bit reset to 0. User does not need to check START bit status by software method.
Before executing byte program/page erase ISP function, user needs to specify flash address at first. When executing
page erase function, SM59128 will erase whole page of flash address indicated by ISPFAH & ISPFAL registers
within the page.
Example: flash address: $XYMN
Page erase function will erase address from $XY00 to $X(Y+1)FF (Y: even number), or
Page erase function will erase address from $X(Y-1)00 to $XYFF (Y: odd number)
To perform the ISP chip erase function, SM59128 will erase all the flash program memory and data flash memory
except the ISP service program space if lock bit N has been configured. Also, SM59128 will de-protect the flash
memory automatically. After chip protect ISP function is executed, all the flash memory will be read as #00H.
Example: ISP service program performs the “byte program” - to program #22H to the address $1005H
MOV ISPFD, #55H
MOV ISPFD, #0AAH
MOV ISPFD, #55H
MOV 0BFh, #04H
MOV 0F4h, #10H
MOV 0F5h, #05H
MOV 0F6h, #22H
MOV 0F7h, #80H
; enable SM59128 ISP function
; set flash address-high, 10H
; set flash address-low, 05H
; set flash data to be programmed, data = 22H
; start to program #22H to the flash address $1005H
; after byte program finished, START bit of FCR will be reset to 0 automatically
; program counter then point to the next instruction
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
15
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
4. Watch Dog Timer
The Watch Dog Timer (WDT) is a 16-bit free-running counter that generate reset signal if the counter overflows. The
WDT is useful for systems, which are susceptible to noise, power glitches, or electronics discharge which causing
software dead loop or runaway. The WDT function can help user software recover from abnormal software condition.
The WDT is different from Timer0, Timer1 and Timer2 of general 8052. To prevent a WDT reset can be done by
software periodically clearing the WDT counter. User should check WDR bit of SCONF register whenever un-predicted
reset happened
The purpose of the secure procedure is to prevent the WDTC value from being changed when system runaway.
There is a 250KHz RC oscillator embedded in chip. Set WDTE = “1” will enable the RC oscillator and the frequency is
independent to the system frequency.
To enable the WDT is done by setting 1 to the bit 7 (WDTE) of WDTC. After WDTE set to 1, the 16-bit counter starts to
count with the RC oscillator. It will generate a reset signal when overflows. The WDTE bit will be cleared to 0
automatically when SM59128 been reset, either hardware reset or WDT reset.
To reset the WDT is done by setting 1 to the CLEAR bit of WDTC before the counter overflow. This will clear the
content of the 16-bit counter and let the counter re-start to count from the beginning.
4.1 Watch Dog Timer Registers:
Watch Dog Timer Registers - WDT Control Register (WDTC, $9F)
bit-7
bit-0
WDTE
Reserve
Clear
Unused
Unused
PS2
PS1
PS0
Read / Write:
R/W
-
R/W
-
-
R/W
R/W
R/W
Reset value:
0
*
0
*
*
0
0
0
WDTE : Watch Dog Timer enable bit
CLEAR : Watch Dog Timer reset bit
PS[2:0] : Overflow period select bits
PS [2:0]
Overflow Period (ms)
000
2.048
001
4.096
010
8.192
011
16.384
100
32.768
101
65.536
110
131.072
111
262.144
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
16
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Watch Dog Key Register - (WDTKEY, $97H)
bit-7
bit-0
Read / Write:
WDT
KEY7
W
WDT
KEY6
W
WDT
KEY5
W
WDT
KEY4
W
WDT
KEY3
W
WDT
KEY2
W
WDT
KEY1
W
WDT
KEY0
W
Reset value:
0
0
0
0
0
0
0
0
By default, the WDTC is read only. User need to write values 1EH, E1H sequentially to the WDTKEY($97H) register to
enable the WDTC write attribute, That is
MOV WDTKEY, # 1EH
MOV WDTKEY, # 0E1H
When WDTC is set, user need to write another values E1H, 1EH sequentially to the WDTKEY($97H) register to
disable the WDTC write attribute, That is
MOV WDTKEY, # 0E1H
MOV WDTKEY, # 1EH
Watch Dog Timer Register - System Control Register (SCONF, $BF)
Read / Write:
bit-7
WDR
Unused
Unused
Unused
BANK
ISPE
OME
bit-0
ALEI
R/W
-
-
-
R/W
R/W
R/W
R/W
Reset value:
0
*
*
*
0
0
0
0
The bit 7 (WDR) of SCONF is Watch Dog Timer Reset bit. It will be set to “1” when reset signal generated by WDT
overflow. User should check WDR bit whenever un-predicted reset happened
5. Reduce EMI Function
The SM59128 allows user to reduce the EMI emission by setting 1 to the bit 0 (ALEI) of SCONF register. This function
will inhibit the clock signal in Fosc/6Hz output to the ALE pin.
6. Specific Pulse Width Modulation (SPWM)
The Specific Pulse Width Modulation (SPWM) module contains 1 kind of PWM sub module: SPWM (Specific PWM).
SPWM has five 8-bit channels.
6.1 SPWM Function Description:
The 8-bit SPWM channel is composed of an 8-bit register, which contains a 5-bit SPWM in MSB portion and a 3-bit
binary rate multiplier (BRM) in LSB portion. The value that programmed in the 5-bit SPWM portion will determine the
pulse length of the output. The 3-bit BRM portion will generate and insert certain narrow pulses among an
8-SPWM-cycle frame. The number of pulses generated is equal to the number programmed in the 3-bit BRM portion.
The usage of the BRM is to generate equivalent 8-bit resolution SPWM type DAC with reasonably high repetition rate
through 5-bit SPWM clock speed. The SPFS[1:0] settings of SPWMC ($A3) register are dividend of Fosc to be SPWM
clock, Fosc/2^(SPFS[1:0]+1). The SPWM output cycle frame repetition rate (frequency) equals (SPWM clock)/32
which is [Fosc/2^(SPFS[1:0]+1)]/32.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
17
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
6.2 SPWM Registers - P1CON, SPWMC, SPWMD[3:0]
SPWM Registers - Port1 Configuration Register (P1CON, $9B)
bit-7
IICDAE
IICCLE
SPWME3
SPWME2
SPWME1
SPWME0
Unused
bit-0
Unused
Read / Write:
R/W
R/W
R/W
R/W
R/W
R/W
-
-
Reset value:
0
0
0
0
0
0
*
*
IICDAE: When the bit set to one, the corresponding IICDA pin is active as IICDA function. When the bit reset to zero,
the corresponding IICDA pin is active as I/O pin. Four bits are cleared upon reset.
IICCLE: When the bit set to one, the corresponding IICCLE pin is active as IICCLE function. When the bit reset to zero,
the corresponding IICCLE pin is active as I/O pin. Four bits are cleared upon reset.
SPWME[3:0]: When the bit set to one, the corresponding SPWM pin is active as SPWM function. When the bit reset to
zero, the corresponding SPWM pin is active as I/O pin. Four bits are cleared upon reset.
SPWM Registers -SPWM Control Register (SPWMC, $A3)
bit-7
bit-0
Unused
Unused
Unused
Unused
Unused
Unused
SPFS1
SPFS0
Read / Write:
-
-
-
-
-
-
R/W
R/W
Reset value:
*
*
*
*
*
*
0
0
SPFS[1:0] : These two bits is 2’s power parameter to form a frequency divider for input clock.
SPFS1
SPFS0
Divider
SPWM clock, Fosc=20MHz
SPWM clock, Fosc=24MHz
0
0
2
10MHz
12MHz
0
1
4
5MHz
6MHz
1
0
8
2.5MHz
3MHz
1
1
16
1.25MHz
1.5MHz
SPWM Registers -SPWM Data Register (SPWMD[4:0], $AC, $A7 ~$A4)
bit-7
bit-0
Read / Write:
SPWMD
[4:0]4
R/W
SPWMD
[4:0]3
R/W
SPWMD
[4:0]2
R/W
SPWMD
[4:0]1
R/W
SPWMD
[4:0]0
R/W
BRM
[2:0]2
R/W
BRM
[2:0]1
R/W
BRM
[2:0]0
R/W
Reset value:
0
0
0
0
0
0
0
0
SPWMD[4:0] : content of SPWM Data Register. It determines duty cycle of SPWM output waveform.
BRM[2:0] : will insert certain narrow pulses among an 8-SPWM-cycle frame
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
18
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
N = BRM[2:0]
Number of SPWM cycles inserted in an 8-cycle frame
000
0
001
1
010
2
011
3
100
4
101
5
110
6
111
7
Example of SPWM timing diagram:
MOV SPWMD0 , #83H
MOV P1CON , #08H
; SPWMD0[4:0]=10h (=16T high, 16T low), BRM[2:0] = 3
; Enable P1.3 as SPWM output pin
(narrow pulse inserted by BRM0[2:0] setting, here BRM0[2:0]=3)
SPWM clock = 1 / T = Fosc / 2^(SPFS[1:0]+1)
The SPWM output cycle frame frequency = SPWM clock / 32 = [Fosc/2^(SPFS[1:0]+1)]/32
If user use Fosc=20MHz, SPFS[1:0] of SPWMC=#03H, then
SPWM clock = 20MHz/2^4 = 20MHz/16 = 1.25MHz
SPWM output cycle frame frequency = (20MHz/2^4)/32=39.1KHz
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
19
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
7. IIC Interface (Inter-Integrated Circuit)
The IIC module uses the SCL (clock) and the SDA (data) line to communicate with external IIC interface. User can
select speed to 6.25K~400Kbps by setting the BR[2..0] control bit in software. The IIC module provide 4 interrupts (Rx,
Tx, NonAck, TxFail). It will generate and/or detects START, repeated START and STOP signals automatically in
master mode. The maximum communication length and the number of devices that can be connected are limited by a
maximum bus capacitance of 400pF.
7.1 IIC Registers
IIC Status Register (IICS, $C0)
bit-7
bit-0
RXIF
TXIF
TFIF
NAKIF
Read / Write:
Note1
Note1
Note1
Note1
Reset value:
0
0
0
0
Unused
RXAK
MASTER
TXAK
Note2
Note3
Note3
1
0
0
Note1:Read and Writer’0’ only
Note2:Read only
Note3:Read and Writer
RXIF: The data Receive Interrupt Flag (RXIF) is set after the IICRDB (IIC Receive Data Buffer) is loaded with a newly
receive data. Once the IRDB is loaded with received data, no more received data can be loaded to the IICRDB
register again.
TXIF: The data Transmit Interrupt Flag is set when the data of the IICTDB register is downloaded to the shift register or
Master Transmit mode the IADR is downloaded to the shift register. It is software’s responsibility to fill the
IICTDB register with new data when this bit is set. This bit is cleared by writing zero to it, write data to IICTDB or
when reset.
TFIF: The Transmit Fail Interrupt Flag is set when the data transmit is fail, which as set MASTER bit when the BB has
been set by detecting the start condition on the lines or when the module is transmitting a One to SDA line but
detected a Zero from SDA line in master mode, which is also called arbitration loss. This bit is cleared by writing
Zero to it or by reset.
NAKIF: The NonAcknowledge Interrupt Flag is only set in the master transmit mode when there is no acknowledge bi
detected after one byte data or calling address is transferred. This bit is cleared by writing Zero to it or by reset.
RXAK: If the received acknowledge bit (RXAK) is low, it indicates an acknowledge signal has been received after the
completion of 8 data bits transmission on the bus. If RXAK is high, it indicates no acknowledge signal has been
detected at the 9th clock. Then the module will release the SDA line for the master to generate Stop or Repeated
Start condition. It is set upon reset.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
20
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
MASTER: If set the MASTER bit, the module will generate a start condition to the SDA and SCL lines and send out the
calling address which is stored in the IADR register. But if the TFIF flag is set when transmit fail occurs on the
lines, the module will discard the master mode by clearing the MASTER bit and release both SDA and SCL
lines immediately. This bit can also be cleared by writing zero to it or when the NAKIF is set. When the
MASTER bit is cleared either by set NAKIF or software the module will generate a stop condition to the lines
after the current byte transmission is done, and IGNORE the IICTDB data when next IIC transmit cycle if this
data had not been transmit out. Reset clears this bit.
TXAK: The bit (TXAK) control the acknowledge transmit in RECEIVE mode, if it is cleared, a low (Ack) will be
generated at the 9th clock after receiving 8 bits data. When TXAK is set, a high (NoAck) will be generated at the
9th clock after receiving 8 bits data. Reset clears this bit.
IIC Address Register (IICA, $C1)
bit-7
Read:
Write:
IICA.7
bit-0
IICA.6
IICA.5
IICA.4
IICA.3
IICA.2
IICA.1
EXTADDR
Reset value:
1
0
1
0
0
0
0
0
IICA[7:1] : These 7 bits can be the chip address in slave mode or the calling address when in master mode. This
register is set as $A0 upon reset.
EXTADDR : The EXTAD bit is set to expand the chip address of this module. When it is one, the module will
acknowledge the general call address $00 and the address comparison circuit will only compare the 4
MSB bits in the LADR register. When it is zero, the module will only acknowledge to the specific address
which is stored in the IADR register. It is zero after reset.
IIC Control Register (IICC1, $C2)
bit-7
Read:
Write:
IICE
bit-0
-
-
-
BB
IICFS2
IICFS1
IICFS0
Reset value:
0
0
0
0
0
0
0
1
IICE: If this IIC module Enable bit (IE1) is set, the IIC module is enable. If the IE1 is clear, the interface is disable and all
flags will restore its reset default states. Reset to clear this bit.
BB : The Bus Busy Flag is set after a start condition is detected, and is reset when a stop condition is detected. Reset
clears this bit.
IICFS[2:0] :The three Baud Rate select bits will select one of the eight clock rates as the master clock when the module
is in master mode. The serial clock frequency is equal to the external clock divided by the certain divider.
These bits are cleared upon reset.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
21
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
IICFS[2:0]
Baud Rate
0:0:0
Unused
0:0:1
400K
0:1:0
200K
0:1:1
100K
1:0:0
50K
1:0:1
25K
1:1:0
12.5K
1:1:1
6.25K
Note: clock source is from external (12M Hz).
IIC Control Register 2 (IICC2, $C3)
bit-7
bit-0
Read/Write:
MATCH
Note1
SRW
Note1
-
-
RSTART
Note2
-
-
MRW
Note3
Reset value:
1
0
0
0
0
0
0
0
Note1: Read and Writer’0’ only
Note2: Read only
Note3: Read and Writer
MATCH: The MATCH flag is set when the first received data (following START signal) in the IRDB register which
matches with the address or its extended addresses (EXTAD=1) specified in the IADR.
SRW: The Slave Rw bit will indicate the data direction of IIC protocol. It is updated after the calling address is received
in the SLAVE mode. When it is one, the master will read the data from IIC module, so the module is in transmit
mode. When it is zero, the master will send data to the IIC module, and the module is in receiving mode. The
reset clears it.
RESTART: If user sets RESTART bit in master mode (MASTER=1), the module will generate a start condition to the
SDA and SCL lines (after current ACK bit) and send out the calling address which is stored in the IICADR
register. But if the TFIF flag is set when transmit fail occurs on the lines, the module will discard the master
mode by clearing the MASTER bit and release bit SDA and SCL lines immediately. This bit will be cleared
automatically after generate a start condition to the SDA and SCL lines. Reset clears this bit.
MRW: This MRW bit will be transmitted out to be the bit 0 of the calling address when the module sets the MAS TER bit
to enter the master mode. It will also determine the transfer direction of the following data bytes. When it is one,
the module is in master receive mode. When it is zero, the module is in master transmit mode. Reset clears this
bit.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
22
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
IIC Transmit Data Buffer (IICTxD, $C4)
Bit-7
Read:
bit-0
Write:
IICTx
D.7
IICTxD.6
IICTxD.5
IICTxD.4
IICTxD.3
IICTxD.2
IICTxD.1
IICTxD.0
Reset value:
0
0
0
0
0
0
0
0
The data written into this register will be automatically downloaded to the shift register when the module detects a
calling address is matched and the bit 0 of the received data is one (Slave transmit mode) or when the data in the shift
register has been transmitted with received acknowledge bit (RXAK) =0 in transmit mode. So if the program doesn’t
write the data into the IICTDB register before the matched calling address is detected or the shift register has been
transmitted out, the module will pull down the SCL line (after receive acknowledge bit). If write a data to the IICTxD
register, then the written data will be downloaded to the shift register immediately and the module will release the SCL
line, and the TXIF flag is set to generate another interrupt request for next data. So the S/W may need to write the next
data to the IICTxD register and for the auto downloading of data to the shift register after the data in the shift register is
transmitted over again with RXAK=0. If the module receiver non-acknowledge (RXAK=1), the module will release the
SDA line for master to generate Stop or Repeated Start conditions.
IIC Receive Data Buffer (IICRxD, $C5)
Bit-7
Read:
bit-0
IICRD.7
IICRD.6
IICRD.5
IICRD.4
IICRD.3
IICRD.2
IICRD.1
IICRD.0
0
0
0
0
0
0
0
0
Write:
Reset value:
The IIC Receive Data Buffer (IICRxD) contains the last received data when the MATCH flag is one or the calling
address from master when the MATCH flag is zero. The IICRxD register will be updated after a data byte is received
and the previous received data had been read out, otherwise the DDC module will pull down to SCL line to inhabit the
next data transfer. It is a read-only register. The read operation of this register will clear the RXIF flag. After the RXIF
flag is cleared, the register can load the received data again and set the RXIF flag the venerate interrupt request for
reading the newly received data.
7.2 IIC Interrupt
The IIC module will generate IIC interrupt while hardware circuit detects START signal of IICSDA and IICSCL. The IIC
interrupt vector locates at $3B. There are three SFRs for configuring IIC interrupt: IP1, IE1 and IFR. To use IIC interrupt
is the same as to use other generic 8052 interrupts. That means using EIIC of IE1 for enable/disable IIC interrupt,
using PIIC for assign IIC interrupt priority. Whenever IIC interrupt occurs, IICIF will be set to 1. After IIC interrupt
subroutine (vector) been executed, IICIF will be cleared to 0.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
23
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Interrupt Priority I Register (IP1, $B9)
Bit-7
Read:
Write:
Reset value:
bit-0
R
R
R
R
R
R
PIIC
R
0
0
0
0
0
0
0
0
Interrupt priority bit PIIC = 1 assigns high interrupt priority
Interrupt priority bit PIIC = 0 assigns low interrupt priority
Interrupt Enable I Register (IE1, $A9)
Bit-7
Read:
Write:
Reset value:
bit-0
R
R
R
R
R
R
EIIC
R
0
0
0
0
0
0
0
0
Interrupt enable bit EIIC = 1 enables the IIC interrupt
Interrupt enable bit EIIC = 0 disables the IIC interrupt
Interrupt Flag Register (IFR, $AA)
Bit-7
Read:
Write:
Reset value:
bit-0
R
R
R
R
R
R
IICIF
R
0
0
0
0
0
0
0
0
Interrupt flag bit IICIF will be set to 1 when IIC interrupt occurs. Interrupt flag bit IICIF will be clear to 0 if IIC interrupt
subroutine executed.
7.2 PROGRAM ALGORITHM
When the IIC module detects an arbitration loss in master, it will release both SDA and SCL lines immediately. But if
there is no further Stop condition detected, the module will be hanged up.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
24
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Operating Conditions
Symbol
Description
Min.
Typ.
Max.
Unit.
Remarks
TA
Operating temperature
-40
25
85
℃
Ambient temperature under bias
VCC5
Supply voltage
4.5
5.0
5.5
V
Fosc 40
Oscillator Frequency
3.0
40
40
MHz
For 5V application
DC Characteristics
(TA = -40 degree C to 85 degree C, Vcc = 5.5V)
Symbol
Parameter
Valid
VIL1
VIL2
Input Low Voltage
Input Low Voltage
port 0,1,2,3,4,#EA
RES, XTAL1
VIH1
Input High Voltage
port 0,1,2,3,4,#EA
VIH2
Input High Voltage
RES, XTAL1
VOL1
Output Low Voltage
port 0, ALE, #PSEN
VOL2
VOH1
Output Low Voltage
Output High Voltage
port 1,2,3,4
port 0
VOH2
Output High Voltage
Min.
-0.5
port 1,2,3,4,ALE,#PSEN
Max.
Test Conditions
Unit
0.8
V
0
0.8
Vcc=5V
2.0
Vcc+0.5
V
V
70%Vcc
Vcc+0.5
V
0.45
V
IOL=3.2mA
0.45
IOL=1.6mA
2.4
V
V
IOH=-800uA
90%Vcc
V
IOH=-80uA
2.4
90%Vcc
V
V
IOH=-10uA
IOH=-60uA
IIL
Logical 0 Input Current
port 1,2,3,4
-75
uA
Vin=0.45V
ITL
Logical Transition Current
port 1,2,3,4
-650
uA
Vin=2.0V
ILI
Input Leakage Current
port 0, #EA
±10
uA
0.45V<Vin<Vcc
300
Kohm
R RES
C IO
I CC
Reset Pull-down
Resistance
Pin Capacitance
Power Supply Current
RES
50
Vdd
10
pF
Freq=1MHz, Ta=25 ℃
20
mA
Active mode, 16MHz
6.5
mA
Idle mode, 16MHz
50
uA
Power down mode
Note1:Under steady state (non-transient) conditions, IOL must be externally
Limited as follows : Maximum IOL per port pin : 10mA
Maximum IOL per 8-bit port : port 0 :26mA
port 1,2,3
:15mA
Maximum total IOL for all output pins : 71mA
If IOL exceeds the condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test conditions.
Note2 : Minimum VCC for Power-down is 2V.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
25
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Icc Active Mode Test Circuit
Icc
VDD
NC
Clock Signal
XTAL2
SM59128
P0
EA
XTAL1
RST
VSS
AC Characteristics
(16/25/40MHz, operating conditions; CL for Port 0, ALE and PSEN Outputs=150pF; CL for all Other Output=80pF)
Symbol
Parameter
Valid Cycle
fosc=16MHz
Min. Typ. Max
Variable fosc
Min.
Typ.
Unit
T LHLL
ALE pulse width
RD/WRT
115
2xT - 10
nS
T AVLL
Address Valid to ALE low
RD/WRT
43
T - 20
nS
T LLAX
Address Hold after ALE low
RD/WRT
53
T - 10
nS
240
T LLIV
ALE low to Valid Instruction In
RD
T LLPL
ALE low to #PSEN low
RD
53
T - 10
4xT-10
nS
T PLPH
#PSEN pulse width
RD
173
3xT - 15
nS
T PLIV
#PSEN low to Valid Instruction In
RD
T PXIX
Instruction Hold after #PSEN
RD
177
0
3xT-10
0
nS
nS
nS
T PXIZ
Instruction Float after #PSEN
RD
87
T + 25
nS
T AVIV
Address to Valid Instruction In
RD
292
5xT -20
nS
T PLAZ
#PSEN low to Address Float
RD
10
10
nS
T RLRH
#RD pulse width
RD
365
6xT - 10
nS
T WLWH
#WR pulse width
WRT
365
6xT - 10
nS
T RLDV
#RD low to Valid Data In
RD
T RHDX
Data Hold after #RD
RD
302
T RHDZ
Data Float after #RD
RD
145
2xT+20
nS
T LLDV
ALE low to Valid Data In
RD
590
8xT - 10
nS
T AVDV
Address to Valid Data In
RD
542
9xT - 20
nS
3xT+10
nS
0
5xT - 10
0
197
nS
nS
T LLYL
ALE low to #WR High or #RD low
RD/WRT
178
T AVYL
Address Valid to #WR or #RD low
RD/WRT
230
4xT-20
nS
T QVWH
Data Valid to #WR High
WRT
403
7xT-35
nS
T QVWX
Data Valid to #WR transition
WRT
38
T - 25
nS
T WHQX
Data hold after #WR
WRT
73
T + 10
nS
T RLAZ
#RD low to Address Float
RD
RD/WRT
53
72
3xT-10
T -10
5
nS
T + 10
nS
T YALH
#WR or #RD high to ALE high
T CHCL
clock fall time
nS
T CLCX
clock low time
nS
T CLCH
clock rise time
nS
T CHCX
clock high time
nS
T, TCLCL
clock period
63
Remarks
Max
1/fosc
nS
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
26
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
ISP Test Conditions
(40 MHZ, typical operating conditions, valid for SM59128 series)
Symbol
MAX
Remark
Chip erase
3000ms
Vcc = 5V
Page erase
10ms
“
Program
30us
“
Protect
400us
“
Application Reference
Valid for SM59128
X'tal
C1
C2
R
X'tal
C1
C2
R
3MHz
30 pF
30 pF
open
16MHz
30 pF
30 pF
open
6MHz
30 pF
30 pF
open
25MHz
15 pF
15 pF
62KΩ
9MHz
30 pF
30 pF
open
33MHz
5 pF
5 pF
6.8KΩ
XTAL2
12MHz
30 pF
30 pF
open
Crystal
SM59128
R
40MHz
2 pF
2 pF
4.7KΩ
C1
C2
XTAL1
VSS
NOTE: Oscillation circuit is varied with different crystal or ceramic resonator in higher oscillation frequency, it depends
on crystal, or ceramic resonator of its own characteristics. User should check the crystal or ceramic resonator
manufacture for appropriate value of external components.
Please see SM59128 application note for details.
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
27
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Data Memory Read Cycle Timing
Program Memory Read Cycle Timing
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
28
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Data Memory Write Cycle Timing
I/O Ports Timing
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
29
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Timing Critical, Requirement of External Clock
(Vss=0.0V is assumed)
Tm.I External Program Memory Read Cycle
Tm.II External Data Memory Read Cycle
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
30
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
Tm.III External Data Memory Write Cycle
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
31
06/2009
SyncMOS Technologies International, Inc.
SM59128
8-Bits Micro-controller
Embedded 128KB flash & 1KB RAM & IIC & SPWM
MCU writer list
Company
Advantech
7F, No.98, Ming-Chung Rd., Shin-Tien City,
Taipei, Taiwan, ROC
Web site:
http://www.aec.com.tw
Contact info
Tel:02-22182325
Fax:02-22182435
E-mail:
[email protected]
Programmer Model Number
Lab Tool - 48XP/UXP
Lab Tool – 848/848XP
Hi-Lo
4F.,No.18,Lane 79,Rueiguang
Rd.,Neihu,Taipei,Taiwan R.O.C.
Web site:
http://www.hilosystems.com.tw
Tel: 02-87923301
Fax:02-87923285
E-mail:
[email protected]
All - 100 series
Leap
6th F1-4, Lane 609,
Chunghsin Rd., Sec. 5, Sanchung, Taipei ,
Taiwan, ROC
Web site:
http://www.leap.com.tw
Tel: 886-2-29991860
Fax:02-29990015
E-mail:
[email protected]
Leap-48
Xeltek Electronic Co., Ltd
Bldg 6-31 Meizhiguo garden, #2 Jiangjun
Ave., Jiangning, Nanjing, China 211100
Web site:
http://www.xeltek-cn.com
Tel: + 86-25-52765201,
E-mail:
[email protected]
[email protected]
Superpro 280U
Superpro 580U
Superpro 3000U
Superpro 9000U
Guangzhou Zhiyuan Electronic Co.,Ltd
Floor 2,No.7 building,Huangzhou Industrial
Estate,Chebei Road,Tianhe
district,Guangzhou,China 510660
Web site:
http://www.embedtools.com/
TEL: +86-20-28872449
E-mail:
[email protected]
SmartPRO 5000U/X8
TianJin Weilei technology ltd
Rm 357,Venturetech Center,12 Keyan West
Road Nankai District,Tianjin,P.R.C, 300192
Web site:
http://www.weilei.com.cn/
TEL: + 86-22-87891218#801
E-mail:
[email protected]
[email protected]
VP-890;VP-980;VP-880;VP-680
VP-480;VP-380;VP-280;VP-190
GuangZhou Chang Xingjinggong
Technology Development Co ., Ltd.
Room 102 , No.167 , CuiJing street ,
ChangXing road , TianHe district ,
GuangZhou.
Web site:
http://www.top2048.com/
TEL: + 86-20-61391469
E-mail:
[email protected]
TOP-2007
Specifications subject to change without notice contact your sales representatives for the most recent information.
ISSFD-M027Ver: B SM59128
32
06/2009