Memory Map
I/O Section
MC68HC908MR16/MC68HC908MR32 — Rev. 4.0 Advance Information
MOTOROLA Memory Map 45
$001F Configuration Register
(CONFIG)
See page 68.
Read: EDGE BOTNEG TOPNEG INDEP LVIRST LVIPWR STO PE COPD
Write:
Reset: 0 0 0 0 1 1 0 0
$0020 PWM Control Register 1
(PCTL1)
See page 171.
Read: DISX DISY PWMINT PWMF ISENS1 ISENS0 LDOK PWMEN
Write:
Reset: 0 0 0 0 0 0 0 0
$0021 PWM Control Register 2
(PCTL2)
See page 174.
Read: LDFQ1 LDFQ0 0IPOL1 IPOL2 IPOL3 PRSC1 PRSC0
Write:
Reset: 0 0 0 0 0 0 0 0
$0022 Fault Control Register
(FCR)
See page 177.
Read: FINT4 FMODE4 FINT3 FMODE3 FINT2 FMODE2 FINT1 FMODE1
Write:
Reset: 0 0 0 0 0 0 0 0
$0023 Fault Status Register
(FSR)
See page 179.
Read: FPIN4 FFLAG4 FPIN3 FFLAG3 FPIN2 FFLAG2 FPIN1 FFLAG1
Write:
Reset: U 0 U 0 U 0 U 0
$0024 Fault Acknowledge Register
(FTACK)
See page 180.
Read: 0 0 DT6 DT5 DT4 DT3 DT2 DT1
Write: FTACK4 FTACK3 FTACK2 FTACK1
Reset: 0 0 0 0 0 0 0 0
$0025 PWM Output Control
Register (PWMOUT)
See page 182.
Read: 0 OUTCTL OUT6 OUT5 OUT4 OUT3 OUT2 OUT1
Write:
Reset: 0 0 0 0 0 0 0 0
$0026 PWM Counter Register High
(PCNTH)
See page 168.
Read: 0 0 0 0 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset: 0 0 0 0 0 0 0 0
$0027 PWM Counter Register Low
(PCNTL)
See page 168.
Read: Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset: 0 0 0 0 0 0 0 0
$0028 PWM Counter Modulo Register
High (PMODH)
See page 169.
Read: 0 0 0 0 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset: 0 0 0 0 X X X X
Addr. Register Name Bit 7 6 5 4 3 2 1 Bit 0
U = Unaffected X = Indeterminate R = Reserved Bold = Buffered = Unimplemented
Figure 2-2. Control, Status, and Data Registers Summary (Sheet 4 of 10)