HD6417615 Hitachi Semiconductor, HD6417615 Datasheet - Page 578

• Manufacturer Part Number: HD6417615
• Description: Hardware Manual
• Manufacturer: Hitachi Semiconductor

14.2.8
Note: * Only 0 can be written, to clear the flag.
The serial status 2 register (SC2SSR) is an 8-bit register.
SC2SSR can be read or written to at all times. However, 1 cannot be written to the ORER flag.
Also note that in order to clear this flag to 0, they must first be read as 1.
SC2SSR is initialized to H'20 by a reset, by the module standby function, and in standby mode.
Bit 7—Transmit LSB/MSB-First Select (TLM): Selects LSB-first or MSB-first mode in data
transmission.
Bit 7: TLM
0
1
Bit 6—Receive LSB/MSB-First Select (RLM): Selects LSB-first or MSB-first mode in data
reception.
Bit 6: RLM
0
1
Bits 5 and 4—Clock Bit Rate Ratio (N1, N0): These bits select the ratio of the base clock to the bit
rate.
Bit 5:
N1
0
1
Initial value:
Serial Status 2 Register (SC2SSR)
Bit 4:
N0
0
1
0
1
R/W:
Bit:
Description
LSB-first transmission
MSB-first transmission
Description
LSB-first reception
MSB-first reception
TLM
R/W
Description
SCIF operates on base clock of 4 times the bit rate
SCIF operates on base clock of 8 times the bit rate
SCIF operates on base clock of 16 times the bit rate
Setting prohibited
7
0
RLM
R/W
6
0
R/W
N1
5
1
R/W
N0
4
0
MPB
3
0
R
MPBT
R/W
2
0
R/W
EI
1
0
(Initial value)
(Initial value)
(Initial value)
R/(W)*
ORER
0
0
565