mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 243

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

12.9.6 SCI Data Register
MC68HC908JB16
Freescale Semiconductor
NOTE:
—
Rev. 1.1
Address:
The SCI data register (SCDR) is the buffer between the internal data bus
and the receive and transmit shift registers.
R7/T7–R0/T0 — Receive/Transmit Data Bits
Do not use read/modify/write instructions on the SCI data register.
Reset:
Read:
Write:
Reading the SCI data register accesses the read-only received data
bits, R7:R0. Writing to the SCI data register writes the data to be
transmitted, T7:T0. Reset has no effect on the SCI data register.
Serial Communications Interface Module (SCI)
$005F
Bit 7
R7
T7
Figure 12-15. SCI Data Register (SCDR)
R6
T6
6
R5
T5
5
Unaffected by reset
Serial Communications Interface Module (SCI)
R4
T4
4
R3
T3
3
R2
T2
2
R1
T1
1
Technical Data
Bit 0
R0
T0
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