Pike
Technical
Manual
V5.2.3
170
Description of the data path
Description
of
the
data
path
0004h
SERIAL_CONTROL_REG RE
[0]
Receive
enable
RD:
Current
status
WR:
0:
Disable
1:
Enable
TE
[1]
Transmit
enable
RD:
Current
status
WR:
0:
disable
1:
Enable
---
[2
to
7]
Reserved
SERIAL_STATUS_REG
TDRD
[8]
Transmit
data
buffer
ready
Read
only
0:
not
ready
1:
ready
---
[9]
Reserved
RDRD
[10]
Receive
data
buffer
ready
Read
only
0:
not
ready
1:
ready
---
[11]
Reserved
ORER
[12]
Receive
data
buffer
overrun
error
Read:
current
status
WR:
0:
no
error
(to
clear
status)
1:
Ignored
FER
[13]
Receive
data
framing
error
Read:
current
status
WR:
0:
no
error
(to
clear
status)
1:
Ignored
PER
[14]
Receive
data
parity
error
Read:
current
status
WR:
0:
no
error
(to
clear
status)
1:
Ignored
---
[15
to
31] Reserved
Offset
Name
Field
Bit
Description
Table 65: Serial input/output control and status register (SIO CSR) (continued)