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PDF W79E658A Data sheet ( Hoja de datos )
| Número de pieza | W79E658A | |
| Descripción | 8-BIT MICROCONTROLLER | |
| Fabricantes | nuvoton | |
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W79E658A/W79L658A DATA SHEET
8-BIT MICROCONTROLLER
Table of Contents-
1. GENERAL DESCRIPTION ......................................................................................................... 4
2. FEATURES ................................................................................................................................. 4
3. PIN CONFIGURATION ............................................................................................................... 5
4. PIN DESCRIPTION..................................................................................................................... 6
4.1 Port 4 .............................................................................................................................. 7
5. MEMORY ORGANIZATION........................................................................................................ 9
5.1 Program Memory (on-chip Flash) ................................................................................... 9
5.2 Data Memory ................................................................................................................ 10
6. SPECIAL FUNCTION REGISTERS ......................................................................................... 11
7. INSTRUCTION SET.................................................................................................................. 42
7.1 Instruction Timing.......................................................................................................... 50
7.1.1 External Data Memory Access Timing............................................................................52
8. POWER MANAGEMENT.......................................................................................................... 55
8.1 Idle Mode ...................................................................................................................... 55
8.2 Power Down Mode ....................................................................................................... 55
9. RESET ...................................................................................................................................... 56
9.1 Reset Conditions........................................................................................................... 56
9.2 External Reset .............................................................................................................. 56
9.3 Power-On Reset (POR) ................................................................................................ 56
9.4 Watchdog Timer Reset ................................................................................................. 56
9.5 Reset State ................................................................................................................... 57
10. INTERRUPTS ........................................................................................................................... 58
10.1 Interrupt Sources .......................................................................................................... 58
10.2 Priority Level Structure ................................................................................................. 58
11. PROGRAMMABLE TIMERS/COUNTERS ............................................................................... 59
11.1 Timer/Counters 0 & 1.................................................................................................... 59
11.1.1 Time-Base Selection ....................................................................................................59
11.1.2 Mode 0 .........................................................................................................................59
11.1.3 Mode 1 .........................................................................................................................60
11.1.4 Mode 2 .........................................................................................................................60
11.1.5 Mode 3 .........................................................................................................................61
11.2 Timer/Counter 2 ............................................................................................................ 61
11.2.1 Capture Mode...............................................................................................................62
11.2.2 Auto-reload Mode, Counting up....................................................................................62
11.2.3 Auto-reload Mode, Counting Up/Down .........................................................................63
11.2.4 Baud Rate Generator Mode .........................................................................................64
12. WATCHDOG TIMER................................................................................................................. 65
Publication Release Date: Oct 08, 2010
- 1 - Revision A5.0
1 page  
W79E658A/W79L658A
DEVICE
W79E658A40FL
W79L658A25FL
OPERATING
FREQUENCY
up to 40MHz
up to 25MHz
3. Pin Configuration
OPERATING
VOLTAGE
4.5V ~ 5.5V
3.0V ~ 4.5V
PACKAGE
LEAD FREE(ROHS)
QFP100
QFP100
AD2, P0.2
AD1, P0.1
AD0, P0.0
VDD
VDD
AVDD
P7.4
P7.5
P7.6
P7.7
TCK
TMS
TDI
TDO
TRST
P4.2
T2, PWM0, P1.0
T2EX, PWM1, P1.1
STADC, PWM2, P1.2
PWM3, P1.3
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
QFP 100-pin
50 P2.2, A10
49 P2.1, A9
48 P2.0, A8
47 P6.3
46 P6.2
45 P6.1
44 P6.0
43 P7.3
42 P7.2
41 P7.1
40 P7.0
39 P4.0
38 NC
37 VSS
36 VSS
35 AVSS
34 NC
33 XTAL1
32 XTAL2
31 P3.7, RD
* Port location of IIC1 & IIC2 are software configurable
$ P6.4~P6.7 are open drain structure with Schmitt trigger input
Package type:
100L QFP(14x20x1.4mm footprint 2.0mm)
Publication Release Date: Oct 08, 2010
- 5 - Revision A5.0
5 Page 
W79E658A/W79L658A
6. Special Function Registers
The W79E658 uses Special Function Registers (SFR) to control and monitor peripherals. The SFR
reside in register locations 80-FFh and are only accessed by direct addressing. The W79E658
contains all the SFR present in the standard 8051/52, as well as some additional SFR, and, in some
cases, unused bits in the standard 8051/52 have new functions. SFR whose addresses end in 0 or 8
(hex) are bit-addressable. The following table of SFR is condensed, with eight locations per row.
Empty locations indicate that there are no registers at these addresses. When a bit or register is not
implemented, it reads high.
Table 6-1 Special Function Register Location Table
F8 EIP
I2CON2 I2ADDR20 I2ADDR21 I2DATA2 I2STATUS2 I2CLK2
I2TIMER2
F0 B
E8 EIE
I2CON
I2ADDR10 I2ADDR11 I2DATA I2STATUS I2CLK
I2TIMER
E0 ACC
D8 WDCON PWMP
PWM0
PWM1
PWMCON
1
PWM2
PWM3
D0 PSW
WDCON2
C8 T2CON T2MOD
RCAP2L RCAP2H TL2
TH2 PWMCON2 PWM4
C0
ADDCO
N
ADCL
ADCH
PWM5
PMR
STATUS ADCPS
TA
B8 IP
SADEN
B0 P3
P5
P6
P7
A8 IE
SADDR
ROMCON SFRAL
SFRAH
SFRFD
SFRCN
A0 P2
XRAMAH P4CSIN
P4
98 SCON SBUF
P42AL
P42AH
P43AL
P43AH
CHPCON
90 P1
P4CONA P4CONB P40AL
P40AH
P41AL
P41AH
88 TCON TMOD
TL0
TL1
TH0 TH1 CKCON
80 P0
SP
DPL DPH
PCON
1. The SFRs in the column with dark borders are bit-addressable
2. The table is condensed with eight locations per row. Empty locations indicate that these are no registers at these addresses.
When a bit or register is not implemented, it will read high.
- 11 -
Publication Release Date: Oct 08, 2010
Revision A5.0
11 Page | ||
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| PDF Descargar | [ Datasheet W79E658A.PDF ] | |
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