MC68HC08AZ60ACFU MOTOROLA [Motorola, Inc], MC68HC08AZ60ACFU Datasheet - Page 280

• Manufacturer Part Number: MC68HC08AZ60ACFU
• Description: Microcontrollers
• Manufacturer: MOTOROLA [Motorola, Inc]

Serial Peripheral Interface (SPI)
17.13.3 SPI Data Register (SPDR)
Advance Information
280
NOTE:
SPDR
Reset:
Read:
Write:
The SPI data register is the read/write buffer for the receive data register
and the 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 buffers that can contain different values. See
Figure
R7:R0/T7:T0 — Receive/Transmit Data Bits
Do not use Read-modify-write instructions on the SPI data register since
the buffer read is not the same as the buffer written.
Bit 7
R7
T7
17-2.
Figure 17-14. SPI Data Register (SPDR)
Serial Peripheral Interface (SPI)
R6
T6
6
R5
T5
5
Indeterminate after reset
R4
T4
4
R3
T3
3
MC68HC08AZ60A — Rev 0.0
R2
T2
2
R1
T1
1
MOTOROLA
Bit 0
R0
T0