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P87LPC779 Scheda tecnica(PDF) 11 Page - NXP Semiconductors

Il numero della parte P87LPC779
Spiegazioni elettronici  CMOS single-chip 8-bit 80C51 microcontroller with 128-byte data RAM, 8 kB OTP
PDF  74 Pages
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Produttore elettronici  PHILIPS [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

P87LPC779 Scheda tecnica(HTML) 11 Page - NXP Semiconductors

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[1]
I/O port values at reset are determined by the PRHI bit in the UCFG1 configuration byte.
[2]
The PCON reset value is xxBOF POF - 0000b. The BOF and POF flags are not affected by reset. The POF flag is set by hardware upon power up. The BOF flag is set by the
occurrence of a brownout reset/interrupt and upon power up.
[3]
The WDCON reset value is xx11 0000b for a Watchdog reset, xx01 0000b for all other reset causes if the Watchdog is enabled, and xx00 0000b for all other reset causes if the
Watchdog is disabled.
SP
Stack pointer
81h
07h
Bit address
8F
8E
8D
8C
8B
8A
89
88
TCON*
Timer0 and 1 control
88h
TF1
TR1
TF0
TR0
IE1
IT1
IE0
IT0
00H
TH0
Timer0 HIGH
8Ch
00H
TH1
Timer1 HIGH
8Dh
00H
TL0
Timer0 LOW
8Ah
00H
TL1
Timer1 LOW
8Bh
00H
TMOD
Timer0 and 1 mode
89h
GATE
C/T
M1
M0
GATE
C/T
M1
M0
00H
WDCON Watchdog control register
A7h
-
-
WDOVF
WDRUN
WDCLK
WDS2
WDS1
WDS0
[3]
WDRST
Watchdog reset register
A6h
xxh
Table 3:
Special function registers…continued
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
Bit functions and addresses
Reset
value
MSB
LSB
Hex



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