參數(shù)資料
型號: P83C562EBA
廠商: NXP Semiconductors N.V.
元件分類: 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁數(shù): 31/52頁
文件大?。?/td> 299K
代理商: P83C562EBA
1997 Apr 08
31
Philips Semiconductors
Product specification
8-bit microcontroller
P83C562; P80C562
Table 36
State of internal registers after an internal reset
X = undefined state.
REGISTER
7
6
5
4
3
2
1
0
ACC
ADC0N
ADCH
B
CML0 to CML2
CMH0 to CMH2
CTCON
CTL0 to CTL3
CTH0 to CTH3
DPL
DPH
IEN0
IEN1
IP0
IP1
PCH
PCL
PCON
PSW
PWM0
PWM1
PWMP
P0 to P4
P5
RTE
SBUF
SCON
SP
STE
TCON
TH0, TH1
TMH2
TL0, TL1
TML2
TMOD
TM2CON
TM2IR
T3
0
X
X
0
0
0
0
X
X
0
0
0
0
X
0
0
0
0
0
0
0
0
1
X
0
X
0
0
1
0
0
0
0
0
0
0
0
0
0
X
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
X
0
0
0
0
1
X
0
X
0
0
1
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
0
0
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
1
0
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
1
0
0
0
0
0
0
0
0
0
0
0
0
X
0
0
0
0
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
1
X
0
X
0
1
0
0
0
0
0
0
0
0
0
0
17.1
Power-on-reset
When V
DD
is turned on, and provided its rise-time does not
exceed 10 ms, an automatic reset can be obtained by
connecting the RST pin to V
DD
via a 2.2
μ
F capacitor.
When the power is switched on, the voltage on the RST
pin, is equal to V
DD
minus the capacitor voltage, and
decreases from V
DD
as the capacitor charges through the
internal resistor (R
RST
) to ground. The larger the capacitor,
the more slowly V
RST
decreases. V
RST
must remain above
the lower threshold of the Schmitt trigger long enough to
effect a complete reset. The time required is the oscillator
start-up time, plus 2 machine cycles. The port pins will be
in a random state until the oscillator has started and the
internal reset algorithm has written logic 1s to the port pins.
The Power-on-reset circuitry is shown in Fig.17.
Fig.17 Power-on-reset.
handbook, halfpage
VDD
RST
2.2
μ
F
RRST
MBH344
8xC562
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