M38862EDFS View Datasheet(PDF) - MITSUBISHI ELECTRIC
Part Name
Description
Manufacturer
M38862EDFS Datasheet PDF : 110 Pages
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MITSUBISHI MICROCOMPUTERS
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Address Register contents
(1) Port P0 (P0)
000016
0016
(2) Port P0 direction register (P0D)
000116
0016
(3) Port P1 (P1)
000216
0016
(4) Port P1 direction register (P1D)
000316
0016
(5) Port P2 (P2)
000416
0016
(6) Port P2 direction register (P2D)
000516
0016
(7) Port P3 (P3)
000616
0016
(8) Port P3 direction register (P3D)
000716
0016
(9) Port P4 (P4)
000816
0016
(10) Port P4 direction register (P4D)
000916
0016
(11) Port P5 (P5)
000A16
0016
(12) Port P5 direction register (P5D)
000B16
0016
(13) Port P6 (P6)
000C16
0016
(14) Port P6 direction register (P6D)
000D16
0016
(15) Port P7 (P7)
000E16
0016
(16) Port P7 direction register (P7D)
000F16
0016
(17) Port P8 (P8)
001016
0016
(18) Port P8 direction register (P8D)
001116
0016
(19) I2C data shift register (S0)
001216 X X X X X X X X
(20) I2C address register (S0D)
001316
0016
(21) I2C status register (S1)
001416 0 0 0 1 0 0 0 X
(22) I2C control register (S1D)
001516
0016
(23) I2C clock control register (S2)
001616
0016
(24) I2C start/stop condition control register (S2D)
(25) Transmit/Receive buffer register (TB/RB)
001716 0 0 0 1 1 0 1 0
001816 X X X X X X X X
(26) Serial I/O1 status register (SIO1STS)
001916 1 0 0 0 0 0 0 0
(27) Serial I/O1 control register (SIO1CON)
001A16
0016
(28) UART control register (UARTCON)
001B16 1 1 1 0 0 0 0 0
(29) Baud rate generator (BRG)
001C16 X X X X X X X X
(30) Serial I/O2 control register (SIO2CON)
001D16
0016
(31) Watchdog timer control register (WDTCON) 001E16 0 0 1 1 1 1 1 1
(32) Serial I/O2 register (SIO2)
001F16 X X X X X X X X
Note : T The initial values depend on level of the CNVSS pin.
X : Not fixed
Since the initial values for other than above mentioned registers and
RAM contents are indefinite at reset, they must be set.
Fig. 57 Internal status at reset
Address Register contents
(33) Prescaler 12 (PRE12)
002016
FF16
(34) Timer 1 (T1)
002116
0116
(35) Timer 2 (T2)
002216
FF16
(36) Timer XY mode register (TM) 002316
0016
(37) Prescaler X (PREX)
002416
FF16
(38) Timer X (TX)
002516
FF16
(39) Prescaler Y (PREY)
002616
FF16
(40) Timer Y (TY)
002716
FF16
(41) Data bus buffer register 0 (DBB0) 002816 X X X X X X X X
(42) Data bus buffer status register 0 (DBBSTS0) 002916
0016
(43) Data bus buffer control register (DBBCON) 002A16
0016
(44) Data bus buffer register 1 (DBB1) 002B16 X X X X X X X X
(45) Data bus buffer status register 1 (DBBSTS1) 002C16
0016
(46) Comparator data register (CMPD) 002D16 X X X X X X X X
(47) Port control register 1 (PCTL1) 002E16
0016
(48) Port control register 2 (PCTL2) 002F16
0016
(49) PWM0H register (PWM0H)
003016 X X X X X X X X
(50) PWM0L register (PWM0L)
(51) PWM1H register (PWM1H)
003116 X 0 X X X X X X
003216 X X X X X X X X
(52) PWM1L register (PWM1L)
003316 X 0 X X X X X X
(53) AD/DA control register (ADCON) 003416 0 0 0 0 1 0 0 0
(54) A-D conversion register 1 (AD1) 003516 X X X X X X X X
(55) D-A1 conversion register (DA1) 003616
0016
(56) D -A2 conversion register (DA2) 003716
0016
(57) A-D conversion register 2 (AD2) 003816 0 0 0 0 0 0 X X
(58) Interrupt source selection register (INTSEL) 003916
0016
(59) Interrupt edge selection register (INTEDGE) 003A16
0016
(60) CPU mode register (CPUM)
003B16 0 1 0 0 1 0 T 0
(61) Interrupt request register 1 (IREQ1) 003C16
0016
(62) Interrupt request register 2 (IREQ2) 003D16
0016
(63) Interrupt control register 1 (ICON1) 003E16
0016
(64) Interrupt control register 2 (ICON2) 003F16
0016
(65) Flash memory control register (FCON) 0FFE16
0016
(66) Flash command register (FCMD)
0FFF16
0016
(67) Processor status register
(PS) X X X X X 1 X X
(68) Program counter
(PCH) FFFD16 contents
(PCL) FFFC16 contents
57
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