mc9s12vr48 Freescale Semiconductor, Inc, mc9s12vr48 Datasheet - Page 210

• Manufacturer Part Number: mc9s12vr48
• Description: S12 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

S12S Debug Module (S12SDBGV2)
6.3.2.7
There is a dedicated control register for each of the state sequencer states 1 to 3 that determines if
transitions from that state are allowed, depending upon comparator matches or tag hits, and defines the
next state for the state sequencer following a match. The three debug state control registers are located at
the same address in the register address map (0x0027). Each register can be accessed using the COMRV
bits in DBGC1 to blend in the required register. The COMRV = 11 value blends in the match flag register
(DBGMFR).
210
Debug State Control Registers
Table 6-14. State Control Register Access Encoding
COMRV
MC9S12VR Family Reference Manual,
00
01
10
11
Preliminary - Subject to Change Without Notice
Visible State Control Register
DBGSCR1
DBGSCR2
DBGSCR3
DBGMFR
Rev. 2.2
Freescale Semiconductor