mc68hc908kx8 Freescale Semiconductor, Inc, mc68hc908kx8 Datasheet - Page 182

• Manufacturer Part Number: mc68hc908kx8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Development Support
After receiving the eight security bytes from the host, the MCU transmits a break character signalling that
it is ready to receive a command.
182
V
IRST
PTA1
PTA0
Notes: 1 = Echo delay (2 bit times)
DD
The MCU does not transmit a break character until after the host sends the
eight security bytes.
2 = Data return delay (2 bit times)
4 = Wait 1 bit time before sending next byte.
MC68HC908KX8 • MC68HC908KX2 • MC68HC08KX8 Data Sheet, Rev. 2.1
FROM HOST
FROM MCU
Figure 16-15. Monitor Mode Entry Timing
4096 + 64 CGMXCLK CYCLES
24 CGMXCLK CYCLES
1
256 CGMXCLK CYCLES (ONE BIT TIME)
NOTE
4
1
1
2
4
Freescale Semiconductor
1