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参数资料
型号： M38503M2H-XXXFP
元件分类： 微控制器/微处理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO42
封装： 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42
文件页数： 48/103页
文件大小： 1275K
代理商： M38503M2H-XXXFP
Rev.3.01
2003.06.20
page 47 of 98
3850 Group (Spec.A)
Fig. 51 Internal status at reset (spec. A)
A-D control register (ADCON)
A-D conversion low-order register (ADL)
A-D conversion high-order register (ADH)
A-D input selection register (ADSEL)
MISRG
Watchdog timer control register (WDTCON)
Interrupt edge selection register (INTEDGE)
CPU mode register (CPUM)
Interrupt request register 1 (IREQ1)
Interrupt request register 2 (IREQ2)
Interrupt control register 1 (ICON1)
Interrupt control register 2 (ICON2)
Processor status register
Program counter
Note : X : Not fixed
Since the initial values for other than above mentioned registers and
RAM contents are indefinite at reset, they must be set.
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
(25)
(26)
(27)
(28)
(29)
(30)
(31)
(32)
(33)
Address Register contents
0016
FF16
0116
0016
FF16
0016
Port P0 (P0)
Port P0 direction register (P0D)
Port P1 (P1)
Port P1 direction register (P1D)
Port P2 (P2)
Port P2 direction register (P2D)
Port P3 (P3)
Port P3 direction register (P3D)
Port P4 (P4)
Port P4 direction register (P4D)
Port P0, P1, P2 pull-up control register (PULL012)
Port P3 pull-up control register (PULL3)
Port P4 pull-up control register (PULL4)
Serial I/O2 control register 1 (SIO2CON1)
Serial I/O2 control register 2 (SIO2CON2)
Serial I/O2 register (SIO2)
Transmit/Receive buffer register (TB/RB)
Serial I/O1 status register (SIOSTS)
Serial I/O1 control register (SIOCON)
UART control register (UARTCON)
Baud rate generator (BRG)
PWM control register (PWMCON)
PWM prescaler (PREPWM)
PWM register (PWM)
Prescaler 12 (PRE12)
Timer 1 (T1)
Timer 2 (T2)
Timer XY mode register (TM)
Prescaler X (PREX)
Timer X (TX)
Prescaler Y (PREY)
Timer Y (TY)
Timer count source selection register (TCSS)
00 0 0 0 1 1 1
1 0 00 00 0 0
X X X X X X X X
000016
000116
000216
000316
000416
000516
000616
000716
000816
000916
001216
001316
001416
001516
001616
001716
001816
001916
001A16
001B16
001C16
001D16
001E16
001F16
002016
002116
002216
002316
002416
002516
002616
002716
002816
11 10 00 0 0
X X X X X X X X
0016
(34)
(35)
(36)
(37)
(38)
(39)
(40)
(41)
(42)
(43)
(44)
(45)
(46)
(47)
Register contents
003416
003516
003616
003716
003816
003916
003A16
003B16
003C16
003D16
003E16
003F16
(PS)
(PCH)
(PCL)
Address
XX X X X1 X X
FFFD16 contents
FFFC16 contents
0 0 1 1 11 11
0 1 0 010 00
00 0 1 00 0 0
X X X X X X X X
X X
00 0 0 0 0
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