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PDF SH57K12 Data sheet ( Hoja de datos )
| Número de pieza | SH57K12 | |
| Descripción | High Performance 8031 Microcontroller | |
| Fabricantes | SINO WEALTH | |
| Logotipo |  |
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SH57K12
Preliminary
High Performance 8031 Microcontroller
Features
8031 MCU core embedded
DC to 24 MHz operating frequency
EV: ROM-less
16 KB MASK ROM for program storage
384 bytes on-chip data RAM:
256 bytes accessed as in the 8031
128 bytes accessed via “MOVX @DPTR”
RAM mapped system control registers
5 interrupt sources (Timer0, Timer1, UART, CODEC
RAM Check, CODEC RAM Read/Write)
40 GPIO ports with internal pull-up resistors
Two 16-bit programmable timers/counters
Watchdog timer (pin option)
Power Down Mode provided
CODEC controller
Dual Power
MCU and peripherals operate from 2.4 to 3.6V (V3V)
Input/output voltage range from 2.4 to 5.5V (V5V)
Standby current 10µA for V3V = 3.3V, V5V=5V
Package Type
EV128 - pin QFP package
Chip form 80 pin
General Description
The SH57K12 is a low-voltage, high performance 8031 embedded microcontroller with 384 bytes on chip RAM. The
SH57K12 includes a watchdog timer, and a CODEC controller.
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V1.2
1 page  
SH57K12 EV Pad Description (continued)
Pad No.
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
Designation
P31
P34
P35
VCC
VSS
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
I/O Description
I/O 8031 Port 3.1, TXD
I/O 8031 Port 3.4, T0
I/O 8031 Port 3.5, T1
P Power, positive supply
P Power, chip ground
I/O Input/output Port A.0 with high current
I/O Input/output Port A.1 with high current
I/O Input/output Port A.2 with high current
I/O Input/output Port A.3 with high current
I/O Input/output Port A.4 with high current
I/O Input/output Port A.5 with high current
I/O Input/output Port A.6 with high current
I/O Input/output Port A.7 with high current
I/O Input/output Port B.0
I/O Input/output Port B.1
I/O Input/output Port B.2
I/O Input/output Port B.3
I/O Input/output Port B.4
I/O Input/output Port B.5
I/O Input/output Port B.6
I/O Input/output Port B.7
I/O Input/output Port C.0
I/O Input/output Port C.1
I/O Input/output Port C.2
I/O Input/output Port C.3
I/O Input/output Port C.4
I/O Input/output Port C.5
I/O Input/output Port C.6
I/O Input/output Port C.7
I/O Input/output Port D.0
I/O Input/output Port D.1
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SH57K12
V1.2
5 Page 
SH57K12
Memory Allocation
The 8031 is a ROM-less MCU with 256 bytes SRAM. It can support up to 64 Kbytes external program memory and 64
Kbytes external data memory.
Data Memory
– Internal RAM of 8031: There are 256 bytes of internal data memory in 8031
– Special Function Registers (SFR): There are 128-byte SFRs in 8031
– System control registers of SH57K12: There are 128 bytes of system control registers to configure and control the
peripherals of SH57K12
– Built-in Data RAM: There are 128 bytes of RAM, which can be accessed via MOVX instruction
Memory Map
The data memory spaces of 8031 are divided into three blocks, which are generally referred to as the lower 128
direct/indirect addressing bytes, the upper 128 Indirect addressing bytes and SFR space. Please refer to the Intel MCS-51
User’s Manual for detail memory operation of 8031.
The Internal Memory Map
Internal Data Memory
Internal Program
Memory
FFH
128 bytes of RAM
(Indirect Addressing)
80H
7FH
128 bytes of RAM
(Direct/Indirect
Addressing)
00H
SFRs
(Direct Addressing)
FFH
80H
8031Core
C1H
80H
7FH
00H
Memory Mapped
Control Registers
(Accessed via
MOVX)
128 bytes of RAM
(Accessed via
MOVX)
3FFFH
16 KBytes
MASK ROM
0000H
RAM Mapped System Register Summary (using MOVX, 00H-7FH is for 128byte SRAM)
I/O Ports Control and Data Registers
Addr. Register Reset R/W
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
80H PMODA FFH R/W PMODA.7 PMODA.6 PMODA.5 PMODA.4 PMODA.3 PMODA.2
81H
PA
00H R/W
PA.7
PA.6
PA.5
PA.4
PA.3
PA.2
82H PMODB FFH R/W PMODB.7 PMODB.6 PMODB.5 PMODB.4 PMODB.3 PMODB.2
83H
PB
00H R/W
PB.7
PB.6
PB.5
PB.4
PB.3
PB.2
84H PMODC FFH R/W PMODC.7 PMODC.6 PMODC.5 PMODC.4 PMODC.3 PMODC.2
85H
PC
00H R/W
PC.7
PC.6
PC.5
PC.4
PC.3
PC.2
86H PMODD 00H R/W
-
-
-
- PMODD.3 PMODD.2
87H
PD
00H R/W
-
-
-
-
PD.3
PD.2
Watch-Dog Timer Control Register
Bit 1
PMODA.1
PA.1
PMODB.1
PB.1
PMODC.1
PC.1
PMODD.1
PD.1
Bit 0
PMODA.0
PA.0
PMODB.0
PB.0
PMODC.0
PC.0
PMODD.0
PD.0
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V1.2
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet SH57K12.PDF ] | |
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