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PDF W77L532A Data sheet ( Hoja de datos )
| Número de pieza | W77L532A | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | nuvoton | |
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W77L532A DATA SHEET
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION.......................................................................................................... 2
2. FEATURES ................................................................................................................................. 2
3. PIN CONFIGURATIONS............................................................................................................. 3
4. PIN DESCRIPTION..................................................................................................................... 4
5. FUNCTIONAL DESCRIPTION.................................................................................................... 6
6. MEMORY ORGANIZATION........................................................................................................ 8
7. INSTRUCTION.......................................................................................................................... 32
8. INSTRUCTION TIMING ............................................................................................................ 33
9. POWER MANAGEMENT .......................................................................................................... 41
10. RESET CONDITIONS............................................................................................................... 43
11. RESET STATE.......................................................................................................................... 44
12. PROGRAMMABLE TIMERS/COUNTERS................................................................................ 49
13. TIMED ACCESS PROTECTION............................................................................................... 65
14. H/W REBOOT MODE (BOOT FROM 4K BYTES OF LDFLASH ) ........................................... 67
15. IN-SYSTEM PROGRAMMING .................................................................................................. 68
15.1 The Loader Program locates at LDFLASH memory. .................................................... 68
15.2 The Loader Program locates at APFLASH memory. .................................................... 68
16. ON-CHIP FLASH EPROM CHARACTERISTICS ..................................................................... 69
17. SECURITY BITS ....................................................................................................................... 72
18. ELECTRICAL CHARACTERISTIC............................................................................................ 73
18.1 Absolute Maximum Ratings .......................................................................................... 73
18.2 DC Characteristics ........................................................................................................ 73
18.3 AC Characteristics ........................................................................................................ 75
19. TYPICAL APPLICATION CIRCUITS......................................................................................... 79
19.1 Crystal connections....................................................................................................... 79
19.2 Expanded External Data Memory and Oscillator .......................................................... 80
20. PACKAGE DIMENSIONS ......................................................................................................... 81
20.1 40-pin DIP ..................................................................................................................... 81
20.2 44-pin PLCC.................................................................................................................. 81
20.3 44-pin QFP.................................................................................................................... 82
21. APPLICATION NOTE................................................................................................................ 83
22. REVISION HISTORY ................................................................................................................ 88
Publication Release Date: December 4, 2008
- 1 - Revision A10
1 page  
W77L532A
Pin Description, continued
SYMBOL TYPE
DESCRIPTIONS
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
RD (P3.7) : External Data Memory Read Strobe
P4.0−P4.3
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. The P4.3 also
provide the alternate function /REBOOT which is H/W reboot from LD flash.
* Note: TYPE I: input, O: output, I/O: bi-directional.
Publication Release Date: December 4, 2008
- 5 - Revision A10
5 Page 
W77L532A
A brief description of the SFRs now follows.
PORT 0
Bit: 7 6 5 4 3 2 1 0
P0.7 P0.6 P0.5 P0.4 P0.3 P0.2 P0.1 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
Address: 82h
This is the low byte of the standard 8052 16-bit data pointer.
DATA POINTER HIGH
Bit:
76543210
DPH.7 DPH.6 DPH.5 DPH.4 DPH.3 DPH.2 DPH.1 DPH.0
Mnemonic: DPH
Address: 83h
This is the high byte of the standard 8052 16-bit data pointer.
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
- 11 -
Publication Release Date: December 4, 2008
Revision A10
11 Page | ||
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