MCCIRM Freescale Semiconductor / Motorola, MCCIRM Datasheet - Page 110

• Manufacturer Part Number: MCCIRM
• Description: MCCIRM Multi-Channel Communications Interface Reference Manual
• Manufacturer: Freescale Semiconductor / Motorola

Memory Map and Registers
B.3.14 SCI Status Register
Reference Manual
110
Register name and address: SCI Status Register (SCSRA), $XXXX1C
Reset:
Read:
Write:
Bit 15
0
= Unimplemented
14
0
Figure B-13. SCI Status Registers (SCSRA and SCSRB)
13
0
SCI Status Register (SCSRB), $XXXX2C
TDRE — Transmit Data Register Empty Flag
TC — Transmit Complete Flag
0RDRF — Receive Data Register Full Flag
RAF — Receiver Active Flag
IDLE — Idle-Line Detected Flag
OR — Overrun Error Flag
NF — Noise Error Flag
12
Freescale Semiconductor, Inc.
0
For More Information On This Product,
0 = The TDR still contains data to be sent to the transmit serial
1 = A new character may now be written to register TDR.
0 = SCI transmitter is busy.
1 = SCI transmitter is idle.
0 = The RDR is empty or contains previously read data.
1 = The RDR contains new data.
0 = SCI receiver is idle.
1 = SCI receiver is busy.
0 = SCI receiver did not detect an idle-line condition.
1 = SCI receiver detected an idle-line condition.
0 = RDRF is cleared before new data arrives.
1 = RDRF is not cleared before new data arrives.
0 = No noise detected on the received data.
1 = Noise occurred on the received data.
11
0
shifter.
Memory Map and Registers
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10
0
9
0
TDRE
8
1
Multichannel Communication Interface — Rev. 1.0
TC
7
1
RDRF RAF IDLE
6
0
0
5
4
0
OR
3
0
NF
0
2
MOTOROLA
FE
0
1
Bit 0
PF
0