|
|
PDF W77E516A Data sheet ( Hoja de datos )
| Número de pieza | W77E516A | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | nuvoton | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de W77E516A (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
|
No Preview Available !
W77E516A DATA SHEET
Table of Contents-
8-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION .................................................................................................................3
2. FEATURES .........................................................................................................................................3
3. PIN CONFIGURATIONS.....................................................................................................................4
4. PIN DESCRIPTION.............................................................................................................................5
5. FUNCTIONAL DESCRIPTION............................................................................................................6
5.1 I/O Ports................................................................................................................................6
5.2 Serial I/O...............................................................................................................................6
5.3 Timers...................................................................................................................................7
5.4 Interrupts...............................................................................................................................7
5.5 Data Pointers ........................................................................................................................7
5.6 Power Management..............................................................................................................7
5.7 On-chip Data SRAM .............................................................................................................7
6. MEMORY ORGANIZATION................................................................................................................8
6.1 Program Memory ..................................................................................................................8
6.2 Data Memory ........................................................................................................................8
6.3 Special Function Registers.................................................................................................10
6.4 Instruction ...........................................................................................................................33
6.5 Instruction Timing ...............................................................................................................41
6.6 Power Management............................................................................................................50
6.7 Reset Conditions ................................................................................................................52
6.8 Reset State .........................................................................................................................53
6.9 Interrupts.............................................................................................................................54
7. PROGRAMMABLE TIMERS/COUNTERS........................................................................................58
7.1 Timer/Counters 0 & 1..........................................................................................................58
7.2 Time-base Selection ...........................................................................................................59
7.3 Timer/Counter 2..................................................................................................................61
7.4 Watchdog Timer .................................................................................................................64
7.5 Serial Port ...........................................................................................................................66
7.6 Framing Error Detection .....................................................................................................71
7.7 Multiprocessor Communications.........................................................................................71
8. TIMED ACCESS PROTECTION.......................................................................................................73
9. SECURITY BITS ...............................................................................................................................75
10. ELECTRICAL CHARACTERISTICS .................................................................................................76
10.1 Absolute Maximum Ratings ................................................................................................76
Publication Release Date: November 19, 2007
- 1 - Revision A9
1 page  
W77E516A
4. PIN DESCRIPTION
SYMBOL
EA
TYPE
DESCRIPTIONS
I
EXTERNAL ACCESS ENABLE: It should be kept high for internal program
access..
PSEN
ALE
RST
XTAL1
XTAL2
VSS
VDD
P0.0 − P0.7
P1.0 − P1.7
O PROGRAM STORE ENABLE: PSEN enables the external ROM data onto
the Port 0 address/data bus during fetch and MOVC operations.
O
ADDRESS LATCH ENABLE: ALE is used to enable the address latch that
separates the address from the data on Port 0.
I
RESET: A high on this pin for two machine cycles while the oscillator is running
resets the device.
I
CRYSTAL1: This is the crystal oscillator input. This pin may be driven by an
external clock.
O CRYSTAL2: This is the crystal oscillator output. It is the inversion of XTAL1.
I GROUND: Ground potential
I POWER SUPPLY: Supply voltage for operation.
PORT 0: Port 0 is an open-drain bi-directional I/O port. This port also provides
I/O a multiplexed low order address/data bus during accesses to external memory.
Port 0 has internal pull-up resisters enabled by software.
PORT 1: Port 1 is a bi-directional I/O port with internal pull-ups. The bits have
alternate functions which are described below:
T2(P1.0): Timer/Counter 2 external count input
T2EX(P1.1): Timer/Counter 2 Reload/Capture/Direction control
RXD1(P1.2): Serial port 1 RXD
I/O TXD1(P1.3): Serial port 1 TXD
INT2(P1.4): External Interrupt 2
INT3 (P1.5): External Interrupt 3
INT4(P1.6): External Interrupt 4
INT5 (P1.7): External Interrupt 5
P2.0 − P2.7
I/O
PORT 2: Port 2 is a bi-directional I/O port with internal pull-ups. This port also
provides the upper address bits for accesses to external memory.
PORT 3: Port 3 is a bi-directional I/O port with internal pull-ups. All bits have
alternate functions, which are described below:
RXD(P3.0): Serial Port 0 input
TXD(P3.1): Serial Port 0 output
P3.0 − P3.7
INT0 (P3.2): External Interrupt 0
I/O INT1(P3.3): External Interrupt 1
T0(P3.4): Timer 0 External Input
T1(P3.5): Timer 1 External Input
WR (P3.6): External Data Memory Write Strobe
P4.0 − P4.3
RD (P3.7): External Data Memory Read Strobe
PORT 4: Port 4 is a 4-bit bi-directional I/O port. The P4.0 also provides the
I/O
alternate function WAIT which is the wait state control signal.
* Note: TYPE I: input, O: output, I/O: bi-directional.
Publication Release Date: November 19, 2007
- 5 - Revision A9
5 Page 
W77E516A
A brief description of the SFRs now follows.
Port 0
Bit: 7
6
P0.7 P0.6
5
P0.5
4
P0.4
3
P0.3
2
P0.2
1
P0.1
0
P0.0
Mnemonic: P0
Address: 80h
Port 0 is an open-drain bi-directional I/O port. This port also provides a multiplexed low order
address/data bus during accesses to external memory. Besides, it has internal pull-up resisters
enabled by setting P0UP of P4CSIN (A2H) to high.
Stack Pointer
Bit:
7
SP.7
6
SP.6
5
SP.5
4
SP.4
3
SP.3
2
SP.2
1
SP.1
0
SP.0
Mnemonic: SP
Address: 81h
The Stack Pointer stores the Scratchpad RAM address where the stack begins. In other words, it
always points to the top of the stack.
Data Pointer Low
Bit:
76543210
DPL.7 DPL.6 DPL.5 DPL.4 DPL.3 DPL.2 DPL.1 DPL.0
Mnemonic: DPL
This is the low byte of the standard 8052 16-bit data pointer.
Address: 82h
Data Pointer High
Bit: 7 6 5 4 3 2 1
DPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1
Mnemonic: DPH
Address: 83h
This is the high byte of the standard 8052 16-bit data pointer.
0
DPH.0
Data Pointer Low1
Bit:
76543210
DPL1.7 DPL1.6 DPL1.5 DPL1.4 DPL1.3 DPL1.2 DPL1.1 DPL1.0
Mnemonic: DPL1
Address: 84h
This is the low byte of the new additional 16-bit data pointer that has been added to the W77E516.
The user can switch between DPL, DPH and DPL1, DPH1 simply by setting register DPS = 1. The
instructions that use DPTR will now access DPL1 and DPH1 in place of DPL and DPH. If they are
not required they can be used as conventional register locations by the user.
Publication Release Date: November 19, 2007
- 11 -
Revision A9
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet W77E516A.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| W77E516 | 8-BIT MICROCONTROLLER |  Winbond |
| W77E516A | 8-BIT MICROCONTROLLER | nuvoton |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |