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W79L659A Schematic ( PDF Datasheet ) - nuvoton

Teilenummer W79L659A
Beschreibung 8-BIT MICROCONTROLLER
Hersteller nuvoton
Logo nuvoton Logo 




Gesamt 30 Seiten
W79L659A Datasheet, Funktion
W79E659A/W79L659A 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 .................................................................................................................. 9
6. SPECIAL FUNCTION REGISTERS ......................................................................................... 10
7. INSTRUCTION SET.................................................................................................................. 41
7.1 Instruction Timing.......................................................................................................... 49
7.1.1 External Data Memory Access Timing............................................................................51
8. POWER MANAGEMENT.......................................................................................................... 54
8.1 Idle Mode ...................................................................................................................... 54
8.2 Power Down Mode ....................................................................................................... 54
9. RESET ...................................................................................................................................... 55
9.1 Reset Conditions........................................................................................................... 55
9.2 External Reset .............................................................................................................. 55
9.3 Power-On Reset (POR) ................................................................................................ 55
9.4 Watchdog Timer Reset ................................................................................................. 55
9.5 Reset State ................................................................................................................... 56
10. INTERRUPTS ........................................................................................................................... 57
10.1 Interrupt Sources .......................................................................................................... 57
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






W79L659A Datasheet, Funktion
W79E659A/W79L659A
4. PIN DESCRIPTION
SYMBOL
EA
TYPE1
I
DESCRIPTIONS
EXTERNAL ACCESS ENABLE: This pin forces the processor to execute
the external ROM. The ROM address and data are not presented on the
bus if the EA pin is high.
PSEN
PROGRAM STORE ENABLE: PSEN enables the external ROM data in the
O H Port 0 address/data bus. When internal ROM access is performed, no
PSEN strobe signal outputs originate from this pin.
ALE
RST
XTAL1
XTAL2
VSS
VDD
AVSS
AVDD
P0.0P0.7
P1.0P1.7
P2.0P2.7
OH
IL
I
O
I
I
I
I
I/O
DSH
I/O
SH
I/O
SH
ADDRESS LATCH ENABLE: ALE enables the address latch that separates
the address from the data on Port 0.
RESET: Set this pin high for two machine cycles while the oscillator is
running to reset the device.
CRYSTAL 1: Crystal oscillator input or external clock input.
CRYSTAL 2: Crystal oscillator output.
GROUND: ground potential.
POWER SUPPLY: Supply voltage for operation.
Analog GROUND: for ADC
Analog Power Supply: for ADC
PORT 0: 8-bit, bi-directional I/O port with internal pull-up resisters. This port
also provides a multiplexed, low-order address / data bus during accesses
to external memory.
PORT 1: 8-bit, bi-directional I/O port with internal pull-up resistors. This port
also provides alternate functions as below.
P1.0 ~ P1.5 provide PWM0 ~ PWM5.
P1.4 ~ P1.7 provide ADC0 ~ ADC3.
P1.0 alternately provides Timer2 external count input.(T2)
P1.1 alternately provides Timer2 Reload/Capture/Direction control.(T2Ex)
PORT 2: 8-bit, bi-directional I/O port with internal pull-ups. This port also
provides the upper address bits when accessing external memory. P2.4 to
P2.7 can be software configured as I2C serial ports
PORT 3: 8-bit, bi-directional I/O port with internal pull-up resistors.
All bits have alternate functions, which are described below:
RXD (P3.0): Serial Port 0 input
TXD (P3.1): Serial Port 0 output
P3.0P3.7
I/O
SH
INT0 (P3.2): External Interrupt 0
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
-6-

6 Page









W79L659A pdf, datenblatt
W79E659A/W79L659A
Table 6-3 Special Function Registers, continued
SYMBOL
DEFINITION
ADDRE
SS
MSB BIT_ADDRESS, SYMBOL
LSB
RESET
PWM4
PWM4 Output
CFH
PWMCON2 PWM Control Register 2 CEH
TH2 T2 reg. High
CDH
TL2 T2 reg. Low
CCH
RCAP2H
T2 Capture Low
CBH
RCAP2L
T2MOD
T2CON
T2 Capture High
Timer 2 Mode
Timer 2 Control
CAH
C9H
C8H
TA
Time Access Register
C7H
ADCPS
STATUS
PMR
PWM5
ADCH
ADCL
ADCCON
SADEN
ADC Input Pin Switch
C6H
Status Register
Power Management
Register
C5H
C4H
PWM5 Output
C3H
ADC
Byte
converter
Result
High
C2H
ADC
Byte
converter
Result
Low
C1H
ADC Control Register
C0H
Slave Address Mask
B9H
IP
Interrupt Priority
B8H
P7 Port 7
B3H
P6 Port 6
B2H
P5 Port 5
B1H
P3 Port 3
B0H
SFRCN
F/W Flash Control
AFH
SFRFD
F/W Flash Data
AEH
SFRAH
F/W Flash High Address ADH
SFRAL
F/W Flash Low Address ACH
SADDR
Slave Address
A9H
IE
Interrupt Enable
A8H
P4 Port 4
A5H
0000
0000B
-
-
-
-
PWM5O PWM4O ENPWM ENPW 0000
E E 5 M4 0000B
0000
0000B
0000
0000B
0000
0000B
0000
0000B
- - - - T2CR - - DCEN xxxx 0xx0B
(CF)
TF2
(CE) (CD) (CC) (CB) (CA)
EXF2 RCLK TCLK EXEN2 TR2
(C9)
C/T2
(C8) 0000
CP/RL2 0000B
0000
0000B
ADCPS. ADCPS. ADCPS. ADCPS. ADCPS. ADCPS. ADCPS. ADCPS. 0000
7 6 5 4 3 2 1 0 0000B
- HIP LIP - - - - - x00x xxxxB
-
-
-
-
-
ALEOF
F
-
DME0 xxxx x0x0B
0000
0000B
ADC.9
ADC.8
ADC.7
ADC.6
ADC.5
ADC.4
ADC.3
ADC.2
xxxx
xxxxxB
ADCLK1
ADCLK
0
-
-
-
-
ADC.1
ADC.0
00xx
xxxxxB
ADCEN -
ADCEX ADCI ADCS AADR2 AADR1 AADR0 0x000000B
0000
0000B
(BF)
-
(BE) (BD) (BC) (BB) (BA) (B9) (B8) x000
PADC PT2 PS
PT1 PX1 PT0 PX0 0000B
1111
1111B
1111
1111B
1111
1111B
(B7) (B6) (B5) (B4) (B3) (B2) (B1) (B0) 1111
RD WR T1 T0 INT1 INT0 TXD RXD 1111B
0
WFWIN NOE
NCE
CTRL3
CTRL2
CTRL1
CTRL0
0011
1111B
xxxx
xxxxxB
0000
0000B
0000
0000B
0000
0000B
(AF)
EA
(AE) (AD) (AC) (AB) (AA) (A9) (A8) 0000
EADC ET2 ES
ET1 EX1 ET0 EX0 0000B
- ---
xxxx
1111B
- 12 -

12 Page





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