Motorola MPC533 Reference Manual page 1021

HRESET
(Tool drives)
Tool negates
HRESET at least 16
system clocks after
receiving device
ready msg
SRESET
(USIU drives)
RSTI
(Tool drives)
Device sends
out Dev ID
1
msg after
negation of RSTI
MSEI
DC reg
Config Msg
MDI (BDM)
TC = 18
DC reg. config
2
msg (BDM)
sent after DevID
msg received
by tool
MSEO
Dev ID
MDO Message
TC = 1
Figure 22-83. RCPU Development Access Timing Diagram — Debug Mode
Figure 22-84 shows the transmission sequence of DSDI/DSDO data messages.
TCODE (6 bits)
MSB
Figure 22-84. Transmission Sequence of DSDx Data Messages
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
SRESET is negated by the MCU
3 after some internal system clocks delay.
Device
Ready
Message
TC = 16
Entry Out-of-Reset
1 2
HEADER (3 bits)
LSB MSB
Chapter 22. READI Module
4 BDM is set based on READI
module configuration
and BDM Entry msg is
sent out when VFLS[0:1]=11.
DSDI
Message
TC = 56
DSDI msg
5
sent after.
BDM msg
6
DSDO msg
BDM sent out
DSDO
ENTRY
Message
Message
TC = 57
TC = 58
3
DATA (7 or 32 bits)
LSB MSB
RCPU Development Access
DSDI
Message
TC = 56
DSDI msg can be
7
sent to device after
TCODE and two
status bits in the
DSDO msg indicate
it is ready.
DSDO
Message
Message
TC = 57
TC = 58
LSB
BDM
EXIT
22-89