XC68HC705F32 Motorola, XC68HC705F32 Datasheet - Page 110

• Manufacturer Part Number: XC68HC705F32
• Description: MICROCONTROLLER
• Manufacturer: Motorola

11
MOTOROLA
11-2
TDO/
PC3
pin
(See note)
Note:
$0047
data register
data shift
Transmit
Transmit
register
Figure 11-1 Serial communications interface block diagram
The serial communications data register (SCDAT) is controlled by
the internal R/W signal. It is the transmit data register when written
to and the receive data register when read.
TE
Transmitter
TRDE
TCLR
R8
control
Internal bus
7
SERIAL COMMUNICATIONS INTERFACE
7
TC
SBK
T8
0
Transmitter
clock
6
6
&
RDRF
SCP1
5
5
+
&
control
Rate generator
IDLE
SCP0 RCKB
Flag
M
4
4
+
7
WAKE
SCI interrupt
OR
&
Receiver
3
3
clock
SCR2
NF
0
2
2
Receiver
&
control
SCR1
FE
0
SCSR
$004A
1
1
BAUD, $004B
SCR0
0
0
SCCR1
$0048
SCCR2
$0049
Wake up
TCIE
RWU
SBK
RIE
ILIE
TIE
TE
RE
(See note)
unit
$0047
7
6
5
4
3
2
1
0
data register
data shift
Receive
Receive
register
MC68HC05F32
RDI/
PC2
pin
TPG