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SH7721 Datasheet(PDF) 1053 Page - Renesas Technology Corp

Part # SH7721
Description  Renesas 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7700 Series
PDF  1524 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

SH7721 Datasheet(HTML) 1053 Page - Renesas Technology Corp

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Section 30
SIM Card Module (SIM)
Rev. 3.00 Jan. 18, 2008 Page 991 of 1458
REJ09B0033-0300
30.3.2
Bit Rate Register (SCBRR)
SCBRR is an 8-bit readable/writable register that sets the transmit/receive bit rate.
Bit
Bit Name
Initial
Value
R/W
Description
7 to 3
All 0
R
Reserved
These bits are always read as 0. The write value should
always be 0.
2
1
0
BRR2
BRR1
BRR0
1
1
1
R/W
R/W
R/W
Set the transmit/receive bit rate 2 to 0.
The SCBRR setting can be determined from the following formula.
sck_frequency =
P
φ
2 ( brr + 1)
The units of P
φ (peripheral clock frequency) and sck_frequency are MHz.



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