MC68HC908AP16CFA MOTOROLA [Motorola, Inc], MC68HC908AP16CFA Datasheet - Page 318

• Manufacturer Part Number: MC68HC908AP16CFA
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Peripheral Interface Module (SPI)
15.13.3 SPI Data Register
Data Sheet
318
NOTE:
Address: $0012
The SPI data register consists of the read-only receive data register and
the write-only transmit data register. Writing to the SPI data register
writes data into the transmit data register. Reading the SPI data register
reads data from the receive data register. The transmit data and receive
data registers are separate registers that can contain different values.
(See
R7–R0/T7–T0 — Receive/Transmit Data Bits
Do not use read-modify-write instructions on the SPI data register since
the register read is not the same as the register written.
Reset:
Read:
Write:
Freescale Semiconductor, Inc.
For More Information On This Product,
Figure
Bit 7
R7
T7
Go to: www.freescale.com
15-2.)
Figure 15-15. SPI Data Register (SPDR)
R6
T6
6
R5
T5
5
Unaffected by reset
R4
T4
4
R3
T3
MC68HC908AP Family — Rev. 2.5
3
R2
T2
2
R1
T1
1
MOTOROLA
Bit 0
R0
T0