mc68hc11ea9 Freescale Semiconductor, Inc, mc68hc11ea9 Datasheet - Page 49

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

MC68HC11EA9
MC68HC11EA9TS/D
(FROM MODULUS
GENERATOR)
BAUD RATE
RECEIVER
REQUESTS
CLOCK
SCI Tx
PD0
RxD
SCCR1 SCI CONTROL 1
SCI INTERRUPT
SCSR2 SCI STATUS 2
AND CONTROL
REQUEST
PIN BUFFER
DDD0
Freescale Semiconductor, Inc.
PIN DRIVER)
(DISABLES
For More Information On This Product,
RE
Figure 13 SCI Receiver Block Diagram
WAKEUP
LOGIC
M
Go to: www.freescale.com
RECOVERY
RDRF
RIE
IDLE
ILIE
OR
RIE
DATA
DETECT
PARITY
÷16
SCSR1 SCI STATUS 1
SCCR2 SCI CONTROL 2
(8) 7 6 5 4 3 2 1 0
Rx SHIFT REGISTER
10 (11) - BIT
RWU
MSB
R8 T8
7
SCDRH Tx/Rx DATA HIGH
SCDRL Tx/Rx DATA LOW
6
—
5
INTERNAL
DATA BUS
—
4
—
3
(READ ONLY)
ALL ONES
—
2
—
1
EA9 SCI RX BLOC
—
0
$x077
$x076
49