mc68hc11ea9 Freescale Semiconductor, Inc, mc68hc11ea9 Datasheet - Page 53

• Manufacturer Part Number: mc68hc11ea9
• Description: 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

PF — Parity Error Flag
SCSR2 — SCI Status Register 2
Bits [7:1] — Not implemented
RAF — Receiver Active Flag (Read only)
SCDRH, SCDRL — SCI Data High, SCI Data Low
R8 — Receiver Bit 8
T8 — Transmitter Bit 8
Bits [5:0] — Not implemented
R/T[7:0] — Receiver/Transmitter Data Bits 7 to 0
MC68HC11EA9
MC68HC11EA9TS/D
RESET:
$102E
$102F
Set if received data has incorrect parity. Cleared by SCSR1 read with PE set, followed by SCDR read.
Always read zero
Ninth serial data bit received when SCI is configured for nine data bit operation (M = 1).
Ninth serial data bit transmitted when SCI is configured for nine data bit operation (M = 1).
Always read zero
SCI data is double buffered in both directions.
0 = The receiver circuitry is idle
1 = A character is being received
R7/T7
BIT 7
BIT 7
R8
—
0
R6/T6
T8
—
6
0
6
Freescale Semiconductor, Inc.
For More Information On This Product,
R5/T5
—
—
5
0
5
Go to: www.freescale.com
R4/T4
—
—
4
0
4
R3/T3
—
—
3
0
3
R2/T2
—
—
2
0
2
R1/T1
—
—
1
0
1
R0/T0
BIT 0
BIT 0
RAF
—
0
$102E, $102F
High
$102D
Low
53