HD6412340 HITACHI [Hitachi Semiconductor], HD6412340 Datasheet - Page 442

• Manufacturer Part Number: HD6412340
• Description: H8S/2345 F-ZTAT Hardware Manual
• Manufacturer: HITACHI [Hitachi Semiconductor]

Bit 0—Multiprocessor Bit Transfer (MPBT): When transmission is performed using
multiprocessor format in asynchronous mode, MPBT stores the multiprocessor bit to be added to
the transmit data.
The MPBT bit setting is invalid when multiprocessor format is not used, when not transmitting,
and in clocked synchronous mode.
Bit 0
MPBT
0
1
12.2.8
BRR is an 8-bit register that sets the serial transfer bit rate in accordance with the baud rate
generator operating clock selected by bits CKS1 and CKS0 in SMR.
BRR can be read or written to by the CPU at all times.
BRR is initialized to H'FF by a reset, and in standby mode or module stop mode.
As baud rate generator control is performed independently for each channel, different values can
be set for each channel.
Table 12.3 shows sample BRR settings in asynchronous mode, and table 12.4 shows sample BRR
settings in clocked synchronous mode.
428
Bit
Initial value
R/W
Bit Rate Register (BRR)
Description
Data with a 0 multiprocessor bit is transmitted
Data with a 1 multiprocessor bit is transmitted
:
:
:
R/W
7
1
R/W
6
1
R/W
5
1
R/W
4
1
R/W
3
1
R/W
2
1
R/W
1
1
(Initial value)
R/W
0
1