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PDF MPC89E515A Data sheet ( Hoja de datos )

Número de pieza MPC89E515A
Descripción 8-bit micro-controller
Fabricantes Megawin Technology 
Logotipo Megawin Technology Logotipo



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No Preview Available ! MPC89E515A Hoja de datos, Descripción, Manual

MPC89x515A
8-bit micro-controller
Features .................................................................................................................................. 2
General Description ............................................................................................................... 3
Order Information: ................................................................................................................. 3
Pin Description....................................................................................................................... 4
Pin Definition................................................................................................................. 4
Pin Configuration........................................................................................................... 6
Block Diagram ....................................................................................................................... 6
Special Function Register ...................................................................................................... 8
Memory.................................................................................................................................. 8
Organization................................................................................................................... 9
Nonvolatile Registers:.................................................................................................. 10
RAM ............................................................................................................................ 11
Embedded Flash........................................................................................................... 12
Functional Description......................................................................................................... 13
TIMERS/COUNTERS................................................................................................. 13
TIMER0 (T0) AND TIMER1 (T1) ...................................................................... 15
TIMER2 ............................................................................................................... 16
Interrupt........................................................................................................................ 20
Watchdog Timer........................................................................................................... 22
www.DataSheet4U.Scoemrial IO Port (UART) ................................................................................................. 23
Reset............................................................................................................................. 26
Power Saving Mode and POF...................................................................................... 26
In System Programming (ISP) ..................................................................................... 27
Note for Other SFR...................................................................................................... 32
Absolute Maximum Rating (MPC89E515A) ...................................................................... 33
DC Characteristics (MPC89E515A).................................................................................... 33
Absolute Maximum Rating (MPC89L515A) ...................................................................... 34
DC Characteristics (MPC89L515A).................................................................................... 34
Package Dimension.............................................................................................................. 35
Revision History .................................................................................................................. 38
This document contains information on a new product under development by Megawin. Megawin reserves the right to change or discontinue this
product without notice.
© Megawin Technology Co., Ltd. 2008 All rights reserved.
2008/12 version A13
MEGAWIN

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MPC89E515A pdf
P3.2 and P3.3 also act as external interrupt
sources, alias INT0 and INT1.
P3.4 and P3.5 also act as event sources for
timer0 and timer1 individually, alias T0 and T1.
P3.6 also acts as write signal while access to
external memory, alias /WR.
P3.7 also acts as read signal while access to
external memory, alias /RD.
P4.0
P4.1
P4.2 (/INT3)
23 17 BU Port4 is extended I/O ports such like Port1. It can
34 28
1 39
be available only on 44L-PLCC and 44L-PQFP
package.
P4.3 (/INT2)
12 6
RESET
9 10 4 IS A high on this pin for at least two machine cycles
will reset the device.
ALE 30 33 27 O Output pulse for latching the low byte of address
during accesses to external memory.
/PSEN
29 32 26 O The read strobe to external program memory, low
active.
/EA 31 35 29 I EA must be kept at low to enable the device to
fetch program code from external flash memory.
An internal pull-up resistance has been
embedded in this pin.
XTAL1
19 21 15 I Input to the inverting oscillator amplifier.
XTAL2
18 20 14 O Output from the inverting amplifier.
www.DataSheeVt4DUD.com
40 44 38 P Power Supply
VSS
20 22 16 G Ground
MEGAWIN
MPC89x515A Data Sheet
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MPC89E515A arduino
NVM register: OR1 (Option Register 1):
Bit-7
Bit-6
Bit-5
Bit-4
FZWDTCR
OSCDN
Bit-3
Bit-2
Bit-1
HWBS
Bit-0
EN6T
FZWDTCR: Used to freeze the WDT-controlling register.
0 := Configure the SFR WDTCR to be reset only via power-up action, not by software reset nor
reset from the Watch Dog Timer.
1:= (default) Permit all the reset events from power-up, software and the Watch Dog Timer
could reset the SFR WDTCR.
OSCDN: Used to adjust the behavior of crystal oscillator.
0:= The DC gained of crystal oscillator amplifier is doubled but bandwidth is reduced. It will bring
help to EMI reducing and improve the power consumption. Dealing with application does
not need high frequency clock (under 20MHz). It is recommended to do so.
1:= The gained of crystal oscillator is enough for oscillator to start oscillating up to 48MHz.
HWBS: Used to configure the MPC89x515A boot from ISP program or normal application program after the
power-on sequence.
0:= The MPC89x515A will boot from ISP start address after power-on.
1:= No operation. The MPC89x515A will boot from normal application program.
EN6T: Used to configure the MPC89x515A run in 6T 12T mode or 6T mode.
0:= The MPC89x515A will run in 6T mode
1:= The MPC89x515A will run in 12T mode
The default value of the OR1 is FFh.
RAM
There are 1280 bytes RAM built in MPC89x515A.
www.DataShTeeht4eUu.csoemr can visit the leading 128-byte RAM via direct addressing instructions, we have named
those RAM as direct RAM that occupies address space 00h to 7Fh.
Followed 128-byte RAM can be visited via indirect addressing instructions, we have named those
RAM as indirect RAM that occupied address space 80h to FFh.
The other 1024-byte RAM is named expanded RAM that still occupied address space 0000h to
03FFh. An user can access it via general register Ri, or via data pointers DPTR associated with
MOVX instructions, say MOVX A, @R1 or MOVX A, @DPTR. To reserve the natural characteristic of
instruction MOVX which is designed to access external memory, the user can set the bit ERAM in
SFR AUXR as 1, and by doing so is to hide the expanded RAM and to visit the external memory.
MEGAWIN
MPC89x515A Data Sheet
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