MC68HC05RC17 Datasheet, PDF (74/128 Pages) Freescale Semiconductor, Inc – General Release Specification

Freescale Semiconductor, Inc.
Carrier Modulator Transmitter (CMT)
9.4.2 Carrier Generator Data Registers
The carrier generator contains two, 7-bit data registers: primary high
time (CHR1), primary low time (CLR1); and two, 6-bit data registers:
secondary high time (CHR2) and secondary low time (CLR2). Bit 7 of
CHR1 and CHR2 is used to read and write the IRO latch.
CHR1 Address: $0010
Bit 7
6
5
4
3
2
1
Bit 0
Read:
IROLN CMTPOL PH5
PH4
PH3
PH2
PH1
PH0
Write:
Reset: 0
0
U
U
U
U
U
U
U = Unaffected
CLR1 Address: $0011
Bit 7
6
5
4
3
2
1
Bit 0
Read:
IROLP
0
Write:
PL5
PL4
PL3
PL2
PL1
PL0
Reset: 0
0
U
U
U
U
U
U
U = Unaffected
CHR2 Address: $0012
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
Write:
0
SH5
SH4
SH3
SH2
SH1
SH0
Reset: 0
0
U
U
U
U
U
U
U = Unaffected
CLR2 Address: $0013
Bit 7
6
5
4
3
2
1
Bit 0
Read:
0
Write:
0
SL5
SL4
SL3
SL2
SL1
SL0
Reset: 0
0
U
U
U
U
U
U
U = Unaffected
Figure 9-3. Carrier Data Register (CHR1, CLR1, CHR2, and CLR2)
General Release Specification
MC68HC05RC17 — Rev. 2.0
Carrier Modulator Transmitter (CMT)
For More Information On This Product,
Go to: www.freescale.com