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W79E8213 Schematic ( PDF Datasheet ) - Nuvoton

Teilenummer W79E8213
Beschreibung 8-bit 4T-8051 microcontroller
Hersteller Nuvoton
Logo Nuvoton Logo 




Gesamt 30 Seiten
W79E8213 Datasheet, Funktion
W79E8213/W79E8213R Data Sheet
Table of Contents
1. GENERAL DESCRIPTION ......................................................................................................... 4
2. FEATURES ................................................................................................................................. 5
3. PARTS INFORMATION LIST ..................................................................................................... 6
3.1 Lead Free (RoHS) Parts information list......................................................................... 6
4. PIN CONFIGURATION ............................................................................................................... 6
5. PIN DESCRIPTIONS .................................................................................................................. 7
6. FUNCTIONAL DESCRIPTION.................................................................................................... 8
6.1 On-Chip Flash EPROM .................................................................................................. 8
6.2 I/O Ports.......................................................................................................................... 8
6.3 Timers ............................................................................................................................. 8
6.4 Interrupts......................................................................................................................... 8
6.5 Data Pointer .................................................................................................................... 8
6.6 Architecture..................................................................................................................... 8
6.6.1 ALU ..................................................................................................................................8
6.6.2 Accumulator .....................................................................................................................9
6.6.3 B Register.........................................................................................................................9
6.6.4 Program Status Word .......................................................................................................9
6.6.5 Scratch-pad RAM .............................................................................................................9
6.6.6 Stack Pointer ....................................................................................................................9
6.7 Power Management........................................................................................................ 9
7. MEMORY ORGANIZATION...................................................................................................... 10
7.1 Program Memory (on-chip Flash) ................................................................................. 10
7.2 Data Flash Memory ...................................................................................................... 10
7.3 Data Memory (accessed by MOVX) ............................................................................. 11
7.4 Scratch-pad RAM and Register Map ............................................................................ 11
7.4.1 Working Registers ..........................................................................................................12
7.4.2 Bit addressable Locations ..............................................................................................13
7.4.3 Stack ..............................................................................................................................13
8. SPECIAL FUNCTION REGISTERS ......................................................................................... 14
9. INSTRUCTION SET.................................................................................................................. 40
9.1 Instruction Timing ......................................................................................................... 48
10. POWER MANAGEMENT.......................................................................................................... 51
10.1 Idle Mode ...................................................................................................................... 51
10.2 Power-down Mode ........................................................................................................ 51
11. RESET CONDITIONS............................................................................................................... 52
11.1 Sources of reset............................................................................................................ 52
11.1.1 External Reset..............................................................................................................53
11.1.2 Power-On Reset (POR)................................................................................................53
11.1.3 Watchdog Timer Reset.................................................................................................54
11.2 Reset State ................................................................................................................... 54
12. INTERRUPTS ........................................................................................................................... 55
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W79E8213 Datasheet, Funktion
W79E8213/W79E8213R Data Sheet
3. PARTS INFORMATION LIST
3.1 Lead Free (RoHS) Parts information list
PART NO.
EPROM
FLASH SIZE
RAM
NVM FLASH
EPROM
INTERNAL RC 1
OSCILLATOR
ACCURACY
W79E8213AKG
4KB 128B
128B
±30%
W79E8213ASG
4KB 128B
128B
±30%
W79E8213RAKG
4KB
128B
128B
±2%
W79E8213RASG
4KB
128B
128B
±2%
Note: 1. Test conditions are VDD = 3.3V, TA = 25°C
Table 3-1: Lead Free (RoHS) Parts information list
PACKAGE
DIP-20 Pin
SOP-20 Pin
DIP-20 Pin
SOP-20 Pin
4. PIN CONFIGURATION
20-PIN DIP/SOP/SSOP
PWM3/AD6/P0.0 1
PWM2/P1.7 2
PWM1/P1.6 3
RST/P1.5 4
VSS 5
XTAL1/P2.1 6
XTAL2/CLKOUT/P2.0 7
STADC/INT1/P1.4 8
INT0/P1.3 9
T0/ED2/P1.2 10
W79E8213AKG
W79E8213ASG
W79E8213RAKG
W79E8213RASG
20 P0.1/AD5/PWM0
19 P0.2/AD4/BRAKE
18 P0.3/AD0
17 P0.4/AD1
16 P0.5/AD2
15 VDD
14 P0.6/AD3
13 P0.7/T1/AD7
12 P1.0/ED0/BUZ
11 P1.1/ED1
Figure 4-1: Pin Configuration
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6 Page









W79E8213 pdf, datenblatt
W79E8213/W79E8213R Data Sheet
FFH
Indirect RAM
80H
7FH
Direct RAM
30H
2FH 7F 7E 7D 7C 7B 7A 79 78
2EH 77 76 75 74 73 72 71 70
2DH 6F 6E 6D 6C 6B 6A 69 68
2CH 67 66 65 64 63 62 61 60
2BH 5F 5E 5D 5C 5B 5A 59 58
2AH 57 56 55 54 53 52 51 50
29H 4F 4E 4D 4C 4B 4A 49 48
28H 47 46 45 44 43 42 41 40
27H 3F 3E 3D 3C 3B 3A 39 38
26H 37 36 35 34 33 32 31 30
25H 2F 2E 2D 2C 2B 2A 29 28
24H 27 26 25 24 23 22 21 20
23H 1F 1E 1D 1C 1B 1A 19 18
22H 17 16 15 14 13 12 11 10
21H 0F 0E 0D 0C 0B 0A 09 08
20H 07 06 05 04 03 02 01 00
1FH
Bank 3
18H
17H
Bank 2
10H
0FH
Bank 1
08H
07H
Bank 0
00H
Figure 7-3: Scratch pad RAM
7.4.1 Working Registers
There are four sets of working registers, each consisting of eight 8-bit registers. These are termed as
Banks 0, 1, 2, and 3. Individual registers within these banks can be directly accessed by separate
instructions. These individual registers are named as R0, R1, R2, R3, R4, R5, R6 and R7. However, at
one time the W79E8213 series can work with only one particular bank. The bank selection is done by
setting RS1-RS0 bits in the PSW. The R0 and R1 registers are used to store the address for indirect
accessing.
-12-

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