mc9s12hz256v2 Freescale Semiconductor, Inc, mc9s12hz256v2 Datasheet - Page 393
mc9s12hz256v2
Manufacturer Part Number
mc9s12hz256v2
Description
Hcs12 Microcontrollers
Manufacturer
Freescale Semiconductor, Inc
Datasheet
1.MC9S12HZ256V2.pdf
(692 pages)
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Write: anytime
The SCI baud rate register is used to determine the baud rate of the SCI and to control the infrared
modulation/demodulation submodule.
13.3.2.2
Read: anytime
Write: anytime
Freescale Semiconductor
Reset
W
R
LOOPS
SCI Control Register 1 (SCICR1)
0
7
If only SCIBDH is written to, a read will not return the correct data until
SCIBDL is written to as well, following a write to SCIBDH.
The baud rate generator is disabled after reset and not started until the TE
bit or the RE bit is set for the first time. The baud rate generator is disabled
when (SBR[12:0] = 0 and IREN = 0) or (SBR[12:1] = 0 and IREN = 1).
Writing to SCIBDH has no effect without writing to SCIBDL, because
writing to SCIBDH puts the data in a temporary location until SCIBDL is
written to.
SCISWAI
0
6
Figure 13-5. SCI Control Register 1 (SCICR1)
TNP[1:0]
Table 13-3. IRSCI Transmit Pulse Width
11
10
01
00
RSRC
MC9S12HZ256 Data Sheet, Rev. 2.05
0
5
NOTE
NOTE
M
0
4
Narrow Pulse Width
1/32
1/16
3/16
1/4
WAKE
0
3
Chapter 13 Serial Communication Interface (SCIV4)
ILT
0
2
PE
0
1
PT
0
0
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