h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 396
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
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Section 13 Serial Communication Interface (SCI)
13.3.6
SCR is a register that enables or disables SCI transfer operations and interrupt requests, and is also
used to selection of the transfer clock source. For details on interrupt requests, see section 13.8,
Interrupt Sources. Some bit functions of SCR differ between normal serial communication
interface mode and smart card interface mode.
• Normal Serial Communication Interface Mode (When SMIF in SCMR is 0)
Rev. 2.00 Dec. 05, 2005 Page 358 of 724
REJ09B0200-0200
Bit
1
0
Bit
7
6
5
4
Bit Name
Bit Name
CKS1
CKS0
TIE
RIE
TE
RE
Serial Control Register (SCR)
0
0
0
Initial
Value
0
0
Initial
Value
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Clock Select 0 and 1
These bits select the clock source for the baud rate
generator.
00: φ clock (n = 0)
01: φ/4 clock (n = 1)
10: φ/16 clock (n = 2)
11: φ/64 clock (n = 3)
For the relationship between the bit rate register setting
and the baud rate, see section 13.3.9, Bit Rate Register
(BRR). n is the decimal representation of the value of n
in BRR (see section 13.3.9, Bit Rate Register (BRR)).
Description
Transmit Interrupt Enable
When this bit is set to 1, the TXI interrupt request is
enabled.
Receive Interrupt Enable
When this bit is set to 1, RXI and ERI interrupt requests
are enabled.
Transmit Enable
When this bit s set to 1, transmission is enabled.
Receive Enable
When this bit is set to 1, reception is enabled.
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