Queued Serial Multi-Channel Module
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
15-47
15.7.3
SCI Control Register 1 (SCCxR1)
SCCxR1 contains SCIx configuration parameters, including transmitter and receiver enable bits, interrupt
enable bits, and operating mode enable bits. The CPU can read or write this register at any time. The SCI
can modify the RWU bit under certain circumstances.
Changing the value of SCCxR1 bits during a transfer operation can disrupt the transfer. Before changing
register values, allow the SCI to complete the current transfer, then disable the receiver and transmitter.
MSB
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
LSB
15
Field
—
LOOPS WOMS ILT
PT
PE
M
WAKE TIE TCIE RIE
ILIE
TE
RE RWU SBK
SRESET
0000_0000_0000_0000
Addr
0x30 500A; 0x30 5022
Figure 15-27. SCI Control Register 1 (SCCxR1)
Table 15-25. SCCxR1 Bit Descriptions
Bits
Name
Description
0
—
Reserved
1
LOOPS
Loop mode
0 Normal SCI operation, no looping, feedback path disabled.
1 SCI test operation, looping, feedback path enabled.
2
WOMS
Wired-OR mode for SCI Pins
0 If configured as an output, TXD is a normal CMOS output.
1 If configured as an output, TXD is an open drain output.
3
ILT
Idle-line detect type. Refer to
Section 15.7.7.9, “Idle-Line Detection
.”
0 Short idle-line detect (start count on first one).
1 Long idle-line detect (start count on first one after stop bit(s)).
4
PT
Parity type. Refer to
Section 15.7.7.4, “Parity Checking
.”
0 Even parity.
1 Odd parity.
5
PE
Parity enable. Refer to
Section 15.7.7.4, “Parity Checking
.
0 SCI parity disabled.
1 SCI parity enabled.
6
M
Mode select. Refer to
Section 15.7.7.2, “Serial Formats
.”
0 10-bit SCI frame.
1 11-bit SCI frame.
7
WAKE
Wakeup by address mark. Refer to
Section 15.7.7.10, “Receiver Wake-Up
.”
0 SCI receiver awakened by idle-line detection.
1 SCI receiver awakened by address mark (last bit set).
8
TIE
Transmit interrupt enable
0 SCI TDRE interrupts disabled.
1 SCI TDRE interrupts enabled.
9
TCIE
Transmit complete interrupt enable
0 SCI TC interrupts disabled.
1 SCI TC interrupts enabled.
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...