Renesas RX Series

R01UH0823EJ0100 Rev.1.00 Page 1008 of 1823
Jul 31, 2019
RX23W Group 33. Serial Communications Interface (SCIg, SCIh)
33.2.21 Control Register 0 (CR0)
33.2.22 Control Register 1 (CR1)
Address(es): SCI12.CR0 0008 B321h
b7 b6 b5 b4 b3 b2 b1 b0
————BRMERXDSFSFSF—
Value after reset:
00000000
Bit Symbol Bit Name Description R/W
b0 — Reserved This bit is read as 0. The write value should be 0. R/W
b1 SFSF Start Frame Status Flag 0: Start Frame detection function is disabled.
1: Start Frame detection function is enabled.
R
b2 RXDSF RXDX12 Input Status Flag 0: RXDX12 input is enabled.
1: RXDX12 input is disabled.
R
b3 BRME Bit Rate Measurement
Enable
0: Measurement of bit rate is disabled.
1: Measurement of bit rate is enabled.
R/W
b7 to b4 — Reserved These bits are read as 0. The write value should be 0. R/W
Address(es): SCI12.CR1 0008 B322h
b7 b6 b5 b4 b3 b2 b1 b0
PIBS[2:0] PIBE CF1DS[1:0] CF0RE BFE
Value after reset:
00000000
Bit Symbol Bit Name Description R/W
b0 BFE Break Field Enable 0: Break Field detection is disabled.
1: Break Field detection is enabled.
R/W
b1 CF0RE Control Field 0 Reception
Enable
0: Reception of Control Field 0 is disabled.
1: Reception of Control Field 0 is enabled.
R/W
b3, b2 CF1DS[1:0] Control Field 1 Data Register
Select
b3 b2
0 0: Selects comparison with the value in PCF1DR.
0 1: Selects comparison with the value in SCF1DR.
1 0: Selects comparison with the values in PCF1DR and
SCF1DR.
1 1: Setting prohibited.
R/W
b4 PIBE Priority Interrupt Bit Enable 0: The priority interrupt bit is disabled.
1: The priority interrupt bit is enabled.
R/W
b7 to b5 PIBS[2:0] Priority Interrupt Bit Select
b7 b5
0 0 0: 0th bit of Control Field 1
0 0 1: 1st bit of Control Field 1
0 1 0: 2nd bit of Control Field 1
0 1 1: 3rd bit of Control Field 1
1 0 0: 4th bit of Control Field 1
1 0 1: 5th bit of Control Field 1
1 1 0: 6th bit of Control Field 1
1 1 1: 7th bit of Control Field 1
R/W