HD64336901G Renesas Technology, HD64336901G Datasheet - Page 220
HD64336901G
Manufacturer Part Number
HD64336901G
Description
(HD64xxx Series) 16-BIT MICROCONTROLLER
Manufacturer
Renesas Technology
Datasheet
1.HD64336901G.pdf
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14.3.6
SCR3 is a register that enables or disables SCI3 transfer operations and interrupt requests, and is
also used to select the transfer clock source. For details on interrupt requests, refer to section 14.7,
Interrupts.
Rev. 1.00, 11/03, page 192 of 376
Bit
1
0
Bit
7
6
5
4
3
Bit Name
CKS1
CKS0
Bit Name
TIE
RIE
TE
RE
MPIE
Serial Control Register 3 (SCR3)
Initial
Value
0
0
Initial
Value
0
0
0
0
0
R/W
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:
01: /4 clock (n = 1)
10: /16 clock (n = 2)
11: /64 clock (n = 3)
For the relationship between the bit rate register setting
and the baud rate, see section 14.3.8, Bit Rate Register
(BRR). n is the decimal representation of the value of n in
BRR (see section 14.3.8, 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.
Multiprocessor Interrupt Enable (enabled only when the
MP bit in SMR is 1 in asynchronous mode)
When this bit is set to 1, receive data in which the
multiprocessor bit is 0 is skipped, and setting of the
RDRF, FER, and OER status flags in SSR is disabled.
On receiving data in which the multiprocessor bit is 1, this
bit is automatically cleared and normal reception is
resumed. For details, refer to section 14.6, Multiprocessor
Communication Function.
clock (n = 0)
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