W77E058A Datasheet PDF - Winbond
| Part Number | W77E058A | |
| Description | 8-BIT MICROCONTROLLER | |
| Manufacturers | Winbond | |
| Logo |  |
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W77E058A Data Sheet
www.DataSheet4U.com
Table of Contents-
8-BIT MICROCONTROLLER
1. GENERAL DESCRIPTION ......................................................................................................... 3
2. FEATURES ................................................................................................................................. 3
3. PIN CONFIGURATIONS ............................................................................................................ 4
4. PIN DESCRIPTION..................................................................................................................... 5
5. FUNCTIONAL DESCRIPTION ................................................................................................... 7
6. MEMORY ORGANIZATION ....................................................................................................... 9
6.1 Program Memory ............................................................................................................ 9
6.2 Data Memory .................................................................................................................. 9
7. SPECIAL FUNCTION REGISTERS ......................................................................................... 11
8. INSTRUCTION.......................................................................................................................... 29
8.1 Instruction Timing ......................................................................................................... 36
8.2 MOVX Instruction.......................................................................................................... 39
8.3 External Data Memory Access Timing ......................................................................... 40
8.4 Wait State Control Signal.............................................................................................. 43
9. POWER MANAGEMENT.......................................................................................................... 44
9.1 Idle Mode ...................................................................................................................... 44
9.2 Economy Mode ............................................................................................................. 44
9.3 Power Down Mode ....................................................................................................... 45
10. RESET CONDITIONS............................................................................................................... 47
10.1 External Reset .............................................................................................................. 47
10.2 Watchdog Timer Reset ................................................................................................. 47
10.3 Reset State ................................................................................................................... 47
11. INTERRUPTS ........................................................................................................................... 49
11.1 Interrupt Sources .......................................................................................................... 49
11.2 Priority Level Structure ................................................................................................. 50
11.3 Interrupt Response Time .............................................................................................. 52
12. PROGRAMMABLE TIMERS/COUNTERS ............................................................................... 53
12.1 Timer/Counters 0 & 1.................................................................................................... 53
12.2 Time-base Selection ..................................................................................................... 53
12.3 Timer/Counter 2............................................................................................................ 56
13. WACHDOG TIMER................................................................................................................... 60
13.1 Watchdog Control ......................................................................................................... 62
Publication Release Date: April 17, 2007
- 1 - Revision A10
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W77E058A
4. PIN DESCRIPTION
SYMBOL
EA
TYPE
DESCRIPTIONS
EXTERNAL ACCESS ENABLE: This pin forces the processor to execute out of
external ROM. It should be kept high to access internal ROM. The ROM
I address and data will not be present on the bus if EA pin is high and the
program counter is within 32 KB area. Otherwise they will be present on the
bus.
PSEN
ALE
RST
XTAL1
XTAL2
VSS
VDD
P0.0−P0.7
P1.0−P1.7
PROGRAM STORE ENABLE: PSEN enables the external ROM data onto the
O Port 0 address/data bus during fetch and MOVC operations. When internal
ROM access is performed, no PSEN strobe signal outputs from this pin.
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.
I/O
PORT 0: 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.
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.
Publication Release Date: April 17, 2007
- 5 - Revision A10
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for W77E058A electronic component. |
| Information | Total 70 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ W77E058A.PDF Datasheet ] | |
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