Datasheet

Register Block
M68HC12B Family Data Sheet, Rev. 9.1
42 Freescale Semiconductor
$0021
Breakpoint Control Register 1
(BRKCT1)
See page 302.
Read:
0 BKDBE BKMBH BKMBL BK1RWE BK1RW BK0RWE BK0RW
Write:
Reset:00000000
$0022
Breakpoint Address Register High
(BRKAH)
See page 303.
Read:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset:00000000
$0023
Breakpoint Address Register Low
(BRKAL)
See page 303.
Read:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset:00000000
$0024
Breakpoint Data Register High
(BRKDH)
See page 304.
Read:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset:00000000
$0025
Breakpoint Data Register Low
(BRKDL)
See page 304.
Read:
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
$0026 Reserved R R R R R R R R
↓
$003F Reserved R R R R R R R R
$0040
PWM Clocks and Concatenate
Register (PWCLK)
See page 128.
Read:
CON23 CON01 PCKA2 PCKA1 PCKA0 PCKB2 PCKB1 PCKB0
Write:
Reset:00000000
$0041
PWM Clock Select and Polarity
Register (PWPOL)
See page 129.
Read:
PCLK3 PCLK2 PCLK1 PCLK0 PPOL3 PPOL2 PPOL1 PPOL0
Write:
Reset:00000000
$0042
PWM Enable Register
(PWEN)
See page 130.
Read:0000
PWEN3 PWEN2 PWEN1 PWEN0
Write:
Reset:00000000
$0043
PWM Prescaler Counter Register
(PWPRES)
See page 131.
Read: 0
Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
$0044
PWM Scale Register 0
(PWSCAL0)
See page 131.
Read:
Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
$0045
PWM Scale Counter Register 0
(PWSCNT0)
See page 131.
Read:Bit 7Bit 6Bit 5Bit 4Bit 3Bit 2Bit 1Bit 0
Write:
Reset:00000000
Addr. Register Name Bit 7654321Bit 0
= Unimplemented R = Reserved U = Unaffected
Notes:
1. Available only on MC68HC912B32 and MC68HC912BC32 devices.
2. Available only on MC68HC912B32 and MC68HC12BE32 devices.
3. Available only on MC68HC(9)12BC32 devices.
Figure 2-1. Register Map (Sheet 3 of 19)