mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 410

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

Serial Communication Interface (SCI)Serial Communications Interface (SCIV4)
18.1.3
Figure 18-1
18-2
Rate Clock
1 × Baud
Block Diagram
shows the transmitter portion of the SCI.
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
Internal Bus
PE
PT
M
TXDIR
BRK13
SBK
TE
Figure 18-1. SCI Transmitter Block Diagram
Generation
T8
Parity
H
(Write-Only)
11-BIT Transmit Shift Register
8
7
SHIFT DIRECTION
SCID – Tx Buffer
6
Transmit Control
5
4
TDRE
TCIE
TIE
TC
3
2
1
0
L
LOOPS
RSRC
SCI Controls TxD
TxD Direction
TXINV
Control
Loop
Tx Interrupt
Request
Freescale Semiconductor
To TxD Pin
To Receive
Data In
TO TxD
Pin Logic