MC68HC05RC17 Datasheet, PDF (78/128 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
Carrier Modulator Transmitter (CMT)
The mark and space time equations are:
t_mark = -⁽--M-----B----U-----F-f--_o-F--_s---_c^+-----1----)---^×-----8-- sec s
t_space = ^{S-----B----U-f--}_o--F--_s--F_c-----^×----8---sec s
Setting the DIV2 bit in the MCSR will double mark and space times.
f_OSC ÷ 8
CARRIER FREQUENCY
MODULATOR GATE
MARK
SPACE
TIME MODE OUTPUT
BASEBAND OUTPUT
MARK
SPACE
MARK
Figure 9-5. CMT Operation in Time Mode
General Release Specification
MC68HC05RC17 — Rev. 2.0
Carrier Modulator Transmitter (CMT)
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