
12
12-23
32170/32174 Group User's Manual (Rev. 2.1)
SERIAL I/O
12.2 Serial I/O Related Registers
D0
123
456
D7
RSTAT
RFIN
REN
OVR
PTY
FLM
ERS
<When reset : H'00>
D
Bit Name
Function
R
W
0
No functions assigned
0
—
1
RSTAT
0 : Reception stopped
—
(Receive status bit)
1 : Reception in progress
2
RFIN
0 : No data in receive buffer register
—
(Receive completed bit)
1 : Data exists in receive buffer register
3
REN
0 : Disables reception
(Receive enable bit)
1 : Enables reception
4
OVR
0 : No overrun error
—
(Overrun error bit)
1 : Overrun error occurred
5
PTY
0 : No parity error
—
(Parity error bit, UART mode only) 1 : Parity error occurred
6
FLM
0 : No framing error
—
(Framing error bit, UART mode only) 1 : Framing error occurred
7
ERS
0 : No error
—
(Error sum bit)
1 : Error occurred
12.2.7 SIO Receive Control Registers
s SIO0 Receive Control Register (S0RCNT)
<Address: H'0080 0116>
s SIO1 Receive Control Register (S1RCNT)
<Address: H'0080 0126>
s SIO2 Receive Control Register (S2RCNT)
<Address: H'0080 0136>
s SIO3 Receive Control Register (S3RCNT)
<Address: H'0080 0146>
s SIO4 Receive Control Register (S4RCNT)
<Address: H'0080 0A16>
s SIO5 Receive Control Register (S5RCNT)
<Address: H'0080 0A26>