Microcontrollers Data Sheet

Development Support
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
264 Freescale Semiconductor
Figure 18-13. Monitor Mode Entry Timing
BYTE 1
BYTE 1 ECHO
BYTE 2
BYTE 2 ECHO
BYTE 8
BYTE 8 ECHO
COMMAND
COMMAND ECHO
PA0
PA7
RST
V
DD
4096 + 32 CGMXCLK CYCLES
24 BUS CYCLES
256 BUS CYCLES (MINIMUM)
1
3
1
1
2
1
BREAK
NOTES:
2 = Data return delay, 2 bit times
3 = Wait 1 bit time before sending next byte.
3
FROM HOST
FROM MCU
1 = Echo delay, 2 bit times